drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.236 $)
   4  *
   5  * Linux on zSeries OSA Express and HiperSockets support
   6  *
   7  * Copyright 2000,2003 IBM Corporation
   8  *
   9  *    Author(s): Original Code written by
  10  *                        Utz Bacher (utz.bacher@de.ibm.com)
  11  *               Rewritten by
  12  *                        Frank Pavlic (pavlic@de.ibm.com) and
  13  *                        Thomas Spatzier <tspat@de.ibm.com>
  14  *
  15  *    $Revision: 1.236 $         $Date: 2005/05/04 20:19:18 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32
  33 #include <linux/config.h>
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/string.h>
  37 #include <linux/errno.h>
  38 #include <linux/mm.h>
  39 #include <linux/ip.h>
  40 #include <linux/inetdevice.h>
  41 #include <linux/netdevice.h>
  42 #include <linux/sched.h>
  43 #include <linux/workqueue.h>
  44 #include <linux/kernel.h>
  45 #include <linux/slab.h>
  46 #include <linux/interrupt.h>
  47 #include <linux/tcp.h>
  48 #include <linux/icmp.h>
  49 #include <linux/skbuff.h>
  50 #include <linux/in.h>
  51 #include <linux/igmp.h>
  52 #include <linux/init.h>
  53 #include <linux/reboot.h>
  54 #include <linux/mii.h>
  55 #include <linux/rcupdate.h>
  56 #include <linux/ethtool.h>
  57
  58 #include <net/arp.h>
  59 #include <net/ip.h>
  60 #include <net/route.h>
  61
  62 #include <asm/ebcdic.h>
  63 #include <asm/io.h>
  64 #include <asm/qeth.h>
  65 #include <asm/timex.h>
  66 #include <asm/semaphore.h>
  67 #include <asm/uaccess.h>
  68
  69 #include "qeth.h"
  70 #include "qeth_mpc.h"
  71 #include "qeth_fs.h"
  72 #include "qeth_eddp.h"
  73 #include "qeth_tso.h"
  74
  75 #define VERSION_QETH_C "$Revision: 1.236 $"
  76 static const char *version = "qeth S/390 OSA-Express driver";
  77
  78 /**
  79  * Debug Facility Stuff
  80  */
  81 static debug_info_t *qeth_dbf_setup = NULL;
  82 static debug_info_t *qeth_dbf_data = NULL;
  83 static debug_info_t *qeth_dbf_misc = NULL;
  84 static debug_info_t *qeth_dbf_control = NULL;
  85 debug_info_t *qeth_dbf_trace = NULL;
  86 static debug_info_t *qeth_dbf_sense = NULL;
  87 static debug_info_t *qeth_dbf_qerr = NULL;
  88
  89 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  90
  91 /**
  92  * some more definitions and declarations
  93  */
  94 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  95
  96 /* list of our cards */
  97 struct qeth_card_list_struct qeth_card_list;
  98 /*process list want to be notified*/
  99 spinlock_t qeth_notify_lock;
 100 struct list_head qeth_notify_list;
 101
 102 static void qeth_send_control_data_cb(struct qeth_channel *,
 103                                       struct qeth_cmd_buffer *);
 104
 105 /**
 106  * here we go with function implementation
 107  */
 108 static void
 109 qeth_init_qdio_info(struct qeth_card *card);
 110
 111 static int
 112 qeth_init_qdio_queues(struct qeth_card *card);
 113
 114 static int
 115 qeth_alloc_qdio_buffers(struct qeth_card *card);
 116
 117 static void
 118 qeth_free_qdio_buffers(struct qeth_card *);
 119
 120 static void
 121 qeth_clear_qdio_buffers(struct qeth_card *);
 122
 123 static void
 124 qeth_clear_ip_list(struct qeth_card *, int, int);
 125
 126 static void
 127 qeth_clear_ipacmd_list(struct qeth_card *);
 128
 129 static int
 130 qeth_qdio_clear_card(struct qeth_card *, int);
 131
 132 static void
 133 qeth_clear_working_pool_list(struct qeth_card *);
 134
 135 static void
 136 qeth_clear_cmd_buffers(struct qeth_channel *);
 137
 138 static int
 139 qeth_stop(struct net_device *);
 140
 141 static void
 142 qeth_clear_ipato_list(struct qeth_card *);
 143
 144 static int
 145 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 146
 147 static void
 148 qeth_irq_tasklet(unsigned long);
 149
 150 static int
 151 qeth_set_online(struct ccwgroup_device *);
 152
 153 static int
 154 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 155
 156 static struct qeth_ipaddr *
 157 qeth_get_addr_buffer(enum qeth_prot_versions);
 158
 159 static void
 160 qeth_set_multicast_list(struct net_device *);
 161
 162 static void
 163 qeth_notify_processes(void)
 164 {
 165         /*notify all  registered processes */
 166         struct qeth_notify_list_struct *n_entry;
 167
 168         QETH_DBF_TEXT(trace,3,"procnoti");
 169         spin_lock(&qeth_notify_lock);
 170         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 171                 send_sig(n_entry->signum, n_entry->task, 1);
 172         }
 173         spin_unlock(&qeth_notify_lock);
 174
 175 }
 176 int
 177 qeth_notifier_unregister(struct task_struct *p)
 178 {
 179         struct qeth_notify_list_struct *n_entry, *tmp;
 180
 181         QETH_DBF_TEXT(trace, 2, "notunreg");
 182         spin_lock(&qeth_notify_lock);
 183         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 184                 if (n_entry->task == p) {
 185                         list_del(&n_entry->list);
 186                         kfree(n_entry);
 187                         goto out;
 188                 }
 189         }
 190 out:
 191         spin_unlock(&qeth_notify_lock);
 192         return 0;
 193 }
 194 int
 195 qeth_notifier_register(struct task_struct *p, int signum)
 196 {
 197         struct qeth_notify_list_struct *n_entry;
 198
 199         /*check first if entry already exists*/
 200         spin_lock(&qeth_notify_lock);
 201         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 202                 if (n_entry->task == p) {
 203                         n_entry->signum = signum;
 204                         spin_unlock(&qeth_notify_lock);
 205                         return 0;
 206                 }
 207         }
 208         spin_unlock(&qeth_notify_lock);
 209
 210         n_entry = (struct qeth_notify_list_struct *)
 211                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 212         if (!n_entry)
 213                 return -ENOMEM;
 214         n_entry->task = p;
 215         n_entry->signum = signum;
 216         spin_lock(&qeth_notify_lock);
 217         list_add(&n_entry->list,&qeth_notify_list);
 218         spin_unlock(&qeth_notify_lock);
 219         return 0;
 220 }
 221
 222
 223 /**
 224  * free channel command buffers
 225  */
 226 static void
 227 qeth_clean_channel(struct qeth_channel *channel)
 228 {
 229         int cnt;
 230
 231         QETH_DBF_TEXT(setup, 2, "freech");
 232         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 233                 kfree(channel->iob[cnt].data);
 234 }
 235
 236 /**
 237  * free card
 238  */
 239 static void
 240 qeth_free_card(struct qeth_card *card)
 241 {
 242
 243         QETH_DBF_TEXT(setup, 2, "freecrd");
 244         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 245         qeth_clean_channel(&card->read);
 246         qeth_clean_channel(&card->write);
 247         if (card->dev)
 248                 free_netdev(card->dev);
 249         qeth_clear_ip_list(card, 0, 0);
 250         qeth_clear_ipato_list(card);
 251         kfree(card->ip_tbd_list);
 252         qeth_free_qdio_buffers(card);
 253         kfree(card);
 254 }
 255
 256 /**
 257  * alloc memory for command buffer per channel
 258  */
 259 static int
 260 qeth_setup_channel(struct qeth_channel *channel)
 261 {
 262         int cnt;
 263
 264         QETH_DBF_TEXT(setup, 2, "setupch");
 265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 266                 channel->iob[cnt].data = (char *)
 267                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 268                 if (channel->iob[cnt].data == NULL)
 269                         break;
 270                 channel->iob[cnt].state = BUF_STATE_FREE;
 271                 channel->iob[cnt].channel = channel;
 272                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 273                 channel->iob[cnt].rc = 0;
 274         }
 275         if (cnt < QETH_CMD_BUFFER_NO) {
 276                 while (cnt-- > 0)
 277                         kfree(channel->iob[cnt].data);
 278                 return -ENOMEM;
 279         }
 280         channel->buf_no = 0;
 281         channel->io_buf_no = 0;
 282         atomic_set(&channel->irq_pending, 0);
 283         spin_lock_init(&channel->iob_lock);
 284
 285         init_waitqueue_head(&channel->wait_q);
 286         channel->irq_tasklet.data = (unsigned long) channel;
 287         channel->irq_tasklet.func = qeth_irq_tasklet;
 288         return 0;
 289 }
 290
 291 /**
 292  * alloc memory for card structure
 293  */
 294 static struct qeth_card *
 295 qeth_alloc_card(void)
 296 {
 297         struct qeth_card *card;
 298
 299         QETH_DBF_TEXT(setup, 2, "alloccrd");
 300         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 301                                             GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         memset(card, 0, sizeof(struct qeth_card));
 306         if (qeth_setup_channel(&card->read)) {
 307                 kfree(card);
 308                 return NULL;
 309         }
 310         if (qeth_setup_channel(&card->write)) {
 311                 qeth_clean_channel(&card->read);
 312                 kfree(card);
 313                 return NULL;
 314         }
 315         return card;
 316 }
 317
 318 static long
 319 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 break;
 335         default:
 336                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 337                            cdev->dev.bus_id);
 338                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 339                 QETH_DBF_TEXT(trace, 2, "  rc???");
 340         }
 341         return PTR_ERR(irb);
 342 }
 343
 344 static int
 345 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 346 {
 347         int dstat,cstat;
 348         char *sense;
 349
 350         sense = (char *) irb->ecw;
 351         cstat = irb->scsw.cstat;
 352         dstat = irb->scsw.dstat;
 353
 354         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 355                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 356                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 357                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 358                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 359                            cdev->dev.bus_id, dstat, cstat);
 360                 HEXDUMP16(WARN, "irb: ", irb);
 361                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 362                 return 1;
 363         }
 364
 365         if (dstat & DEV_STAT_UNIT_CHECK) {
 366                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 367                     SENSE_RESETTING_EVENT_FLAG) {
 368                         QETH_DBF_TEXT(trace,2,"REVIND");
 369                         return 1;
 370                 }
 371                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 372                     SENSE_COMMAND_REJECT_FLAG) {
 373                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 374                         return 0;
 375                 }
 376                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 377                         QETH_DBF_TEXT(trace,2,"AFFE");
 378                         return 1;
 379                 }
 380                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 381                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 382                         return 0;
 383                 }
 384                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 385                         return 1;
 386         }
 387         return 0;
 388 }
 389 static int qeth_issue_next_read(struct qeth_card *);
 390
 391 /**
 392  * interrupt handler
 393  */
 394 static void
 395 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 396 {
 397         int rc;
 398         int cstat,dstat;
 399         struct qeth_cmd_buffer *buffer;
 400         struct qeth_channel *channel;
 401         struct qeth_card *card;
 402
 403         QETH_DBF_TEXT(trace,5,"irq");
 404
 405         if (__qeth_check_irb_error(cdev, irb))
 406                 return;
 407         cstat = irb->scsw.cstat;
 408         dstat = irb->scsw.dstat;
 409
 410         card = CARD_FROM_CDEV(cdev);
 411         if (!card)
 412                 return;
 413
 414         if (card->read.ccwdev == cdev){
 415                 channel = &card->read;
 416                 QETH_DBF_TEXT(trace,5,"read");
 417         } else if (card->write.ccwdev == cdev) {
 418                 channel = &card->write;
 419                 QETH_DBF_TEXT(trace,5,"write");
 420         } else {
 421                 channel = &card->data;
 422                 QETH_DBF_TEXT(trace,5,"data");
 423         }
 424         atomic_set(&channel->irq_pending, 0);
 425
 426         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 427                 channel->state = CH_STATE_STOPPED;
 428
 429         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 430                 channel->state = CH_STATE_HALTED;
 431
 432         /*let's wake up immediately on data channel*/
 433         if ((channel == &card->data) && (intparm != 0))
 434                 goto out;
 435
 436         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 437                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 438                 /* we don't have to handle this further */
 439                 intparm = 0;
 440         }
 441         if (intparm == QETH_HALT_CHANNEL_PARM) {
 442                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 443                 /* we don't have to handle this further */
 444                 intparm = 0;
 445         }
 446         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 447             (dstat & DEV_STAT_UNIT_CHECK) ||
 448             (cstat)) {
 449                 if (irb->esw.esw0.erw.cons) {
 450                         /* TODO: we should make this s390dbf */
 451                         PRINT_WARN("sense data available on channel %s.\n",
 452                                    CHANNEL_ID(channel));
 453                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 454                         HEXDUMP16(WARN,"irb: ",irb);
 455                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 456                 }
 457                 rc = qeth_get_problem(cdev,irb);
 458                 if (rc) {
 459                         qeth_schedule_recovery(card);
 460                         goto out;
 461                 }
 462         }
 463
 464         if (intparm) {
 465                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 466                 buffer->state = BUF_STATE_PROCESSED;
 467         }
 468         if (channel == &card->data)
 469                 return;
 470
 471         if (channel == &card->read &&
 472             channel->state == CH_STATE_UP)
 473                 qeth_issue_next_read(card);
 474
 475         tasklet_schedule(&channel->irq_tasklet);
 476         return;
 477 out:
 478         wake_up(&card->wait_q);
 479 }
 480
 481 /**
 482  * tasklet function scheduled from irq handler
 483  */
 484 static void
 485 qeth_irq_tasklet(unsigned long data)
 486 {
 487         struct qeth_card *card;
 488         struct qeth_channel *channel;
 489         struct qeth_cmd_buffer *iob;
 490         __u8 index;
 491
 492         QETH_DBF_TEXT(trace,5,"irqtlet");
 493         channel = (struct qeth_channel *) data;
 494         iob = channel->iob;
 495         index = channel->buf_no;
 496         card = CARD_FROM_CDEV(channel->ccwdev);
 497         while (iob[index].state == BUF_STATE_PROCESSED) {
 498                 if (iob[index].callback !=NULL) {
 499                         iob[index].callback(channel,iob + index);
 500                 }
 501                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 502         }
 503         channel->buf_no = index;
 504         wake_up(&card->wait_q);
 505 }
 506
 507 static int qeth_stop_card(struct qeth_card *, int);
 508
 509 static int
 510 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 511 {
 512         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 513         int rc = 0, rc2 = 0, rc3 = 0;
 514         enum qeth_card_states recover_flag;
 515
 516         QETH_DBF_TEXT(setup, 3, "setoffl");
 517         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 518
 519         recover_flag = card->state;
 520         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 521                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 522                            CARD_BUS_ID(card));
 523                 return -ERESTARTSYS;
 524         }
 525         rc  = ccw_device_set_offline(CARD_DDEV(card));
 526         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 527         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 528         if (!rc)
 529                 rc = (rc2) ? rc2 : rc3;
 530         if (rc)
 531                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 532         if (recover_flag == CARD_STATE_UP)
 533                 card->state = CARD_STATE_RECOVER;
 534         qeth_notify_processes();
 535         return 0;
 536 }
 537
 538 static int
 539 qeth_set_offline(struct ccwgroup_device *cgdev)
 540 {
 541         return  __qeth_set_offline(cgdev, 0);
 542 }
 543
 544 static int
 545 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 546
 547
 548 static void
 549 qeth_remove_device(struct ccwgroup_device *cgdev)
 550 {
 551         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 552         unsigned long flags;
 553
 554         QETH_DBF_TEXT(setup, 3, "rmdev");
 555         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 556
 557         if (!card)
 558                 return;
 559
 560         if (qeth_wait_for_threads(card, 0xffffffff))
 561                 return;
 562
 563         if (cgdev->state == CCWGROUP_ONLINE){
 564                 card->use_hard_stop = 1;
 565                 qeth_set_offline(cgdev);
 566         }
 567         /* remove form our internal list */
 568         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 569         list_del(&card->list);
 570         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 571         if (card->dev)
 572                 unregister_netdev(card->dev);
 573         qeth_remove_device_attributes(&cgdev->dev);
 574         qeth_free_card(card);
 575         cgdev->dev.driver_data = NULL;
 576         put_device(&cgdev->dev);
 577 }
 578
 579 static int
 580 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 581 static int
 582 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 583
 584 /**
 585  * Add/remove address to/from card's ip list, i.e. try to add or remove
 586  * reference to/from an IP address that is already registered on the card.
 587  * Returns:
 588  *      0  address was on card and its reference count has been adjusted,
 589  *         but is still > 0, so nothing has to be done
 590  *         also returns 0 if card was not on card and the todo was to delete
 591  *         the address -> there is also nothing to be done
 592  *      1  address was not on card and the todo is to add it to the card's ip
 593  *         list
 594  *      -1 address was on card and its reference count has been decremented
 595  *         to <= 0 by the todo -> address must be removed from card
 596  */
 597 static int
 598 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 599                       struct qeth_ipaddr **__addr)
 600 {
 601         struct qeth_ipaddr *addr;
 602         int found = 0;
 603
 604         list_for_each_entry(addr, &card->ip_list, entry) {
 605                 if (card->options.layer2) {
 606                         if ((addr->type == todo->type) &&
 607                             (memcmp(&addr->mac, &todo->mac,
 608                                     OSA_ADDR_LEN) == 0)) {
 609                                 found = 1;
 610                                 break;
 611                         }
 612                         continue;
 613                 }
 614                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 615                     (todo->proto     == QETH_PROT_IPV4)  &&
 616                     (addr->type      == todo->type)      &&
 617                     (addr->u.a4.addr == todo->u.a4.addr) &&
 618                     (addr->u.a4.mask == todo->u.a4.mask)) {
 619                         found = 1;
 620                         break;
 621                 }
 622                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 623                     (todo->proto       == QETH_PROT_IPV6)     &&
 624                     (addr->type        == todo->type)         &&
 625                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 626                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 627                             sizeof(struct in6_addr)) == 0)) {
 628                         found = 1;
 629                         break;
 630                 }
 631         }
 632         if (found) {
 633                 addr->users += todo->users;
 634                 if (addr->users <= 0){
 635                         *__addr = addr;
 636                         return -1;
 637                 } else {
 638                         /* for VIPA and RXIP limit refcount to 1 */
 639                         if (addr->type != QETH_IP_TYPE_NORMAL)
 640                                 addr->users = 1;
 641                         return 0;
 642                 }
 643         }
 644         if (todo->users > 0) {
 645                 /* for VIPA and RXIP limit refcount to 1 */
 646                 if (todo->type != QETH_IP_TYPE_NORMAL)
 647                         todo->users = 1;
 648                 return 1;
 649         } else
 650                 return 0;
 651 }
 652
 653 static inline int
 654 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 655                               int same_type)
 656 {
 657         struct qeth_ipaddr *tmp;
 658
 659         list_for_each_entry(tmp, list, entry) {
 660                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 661                     (addr->proto    == QETH_PROT_IPV4)            &&
 662                     ((same_type && (tmp->type == addr->type)) ||
 663                      (!same_type && (tmp->type != addr->type))  ) &&
 664                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 665                         return 1;
 666                 }
 667                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 668                     (addr->proto == QETH_PROT_IPV6)               &&
 669                     ((same_type && (tmp->type == addr->type)) ||
 670                      (!same_type && (tmp->type != addr->type))  ) &&
 671                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 672                             sizeof(struct in6_addr)) == 0)          ) {
 673                         return 1;
 674                 }
 675         }
 676         return 0;
 677 }
 678
 679 /*
 680  * Add IP to be added to todo list. If there is already an "add todo"
 681  * in this list we just incremenent the reference count.
 682  * Returns 0 if we  just incremented reference count.
 683  */
 684 static int
 685 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 686 {
 687         struct qeth_ipaddr *tmp, *t;
 688         int found = 0;
 689
 690         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 691                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 692                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 693                         return 0;
 694                 if (card->options.layer2) {
 695                         if ((tmp->type  == addr->type)  &&
 696                             (tmp->is_multicast == addr->is_multicast) &&
 697                             (memcmp(&tmp->mac, &addr->mac,
 698                                     OSA_ADDR_LEN) == 0)) {
 699                                 found = 1;
 700                                 break;
 701                         }
 702                         continue;
 703                 }
 704                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 705                     (addr->proto       == QETH_PROT_IPV4)     &&
 706                     (tmp->type         == addr->type)         &&
 707                     (tmp->is_multicast == addr->is_multicast) &&
 708                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 709                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 710                         found = 1;
 711                         break;
 712                 }
 713                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 714                     (addr->proto       == QETH_PROT_IPV6)      &&
 715                     (tmp->type         == addr->type)          &&
 716                     (tmp->is_multicast == addr->is_multicast)  &&
 717                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 718                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 719                             sizeof(struct in6_addr)) == 0)) {
 720                         found = 1;
 721                         break;
 722                 }
 723         }
 724         if (found){
 725                 if (addr->users != 0)
 726                         tmp->users += addr->users;
 727                 else
 728                         tmp->users += add? 1:-1;
 729                 if (tmp->users == 0) {
 730                         list_del(&tmp->entry);
 731                         kfree(tmp);
 732                 }
 733                 return 0;
 734         } else {
 735                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 736                         list_add(&addr->entry, card->ip_tbd_list);
 737                 else {
 738                         if (addr->users == 0)
 739                                 addr->users += add? 1:-1;
 740                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 741                             qeth_is_addr_covered_by_ipato(card, addr)){
 742                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 743                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 744                         }
 745                         list_add_tail(&addr->entry, card->ip_tbd_list);
 746                 }
 747                 return 1;
 748         }
 749 }
 750
 751 /**
 752  * Remove IP address from list
 753  */
 754 static int
 755 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 756 {
 757         unsigned long flags;
 758         int rc = 0;
 759
 760         QETH_DBF_TEXT(trace, 4, "delip");
 761
 762         if (card->options.layer2)
 763                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 764         else if (addr->proto == QETH_PROT_IPV4)
 765                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 766         else {
 767                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 768                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 769         }
 770         spin_lock_irqsave(&card->ip_lock, flags);
 771         rc = __qeth_insert_ip_todo(card, addr, 0);
 772         spin_unlock_irqrestore(&card->ip_lock, flags);
 773         return rc;
 774 }
 775
 776 static int
 777 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 778 {
 779         unsigned long flags;
 780         int rc = 0;
 781
 782         QETH_DBF_TEXT(trace, 4, "addip");
 783         if (card->options.layer2)
 784                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 785         else if (addr->proto == QETH_PROT_IPV4)
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 787         else {
 788                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 789                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 790         }
 791         spin_lock_irqsave(&card->ip_lock, flags);
 792         rc = __qeth_insert_ip_todo(card, addr, 1);
 793         spin_unlock_irqrestore(&card->ip_lock, flags);
 794         return rc;
 795 }
 796
 797 static inline void
 798 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 799 {
 800         struct qeth_ipaddr *addr, *tmp;
 801         int rc;
 802
 803         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 804                 if (addr->is_multicast) {
 805                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 806                         rc = qeth_deregister_addr_entry(card, addr);
 807                         spin_lock_irqsave(&card->ip_lock, *flags);
 808                         if (!rc) {
 809                                 list_del(&addr->entry);
 810                                 kfree(addr);
 811                         }
 812                 }
 813         }
 814 }
 815
 816 static void
 817 qeth_set_ip_addr_list(struct qeth_card *card)
 818 {
 819         struct list_head *tbd_list;
 820         struct qeth_ipaddr *todo, *addr;
 821         unsigned long flags;
 822         int rc;
 823
 824         QETH_DBF_TEXT(trace, 2, "sdiplist");
 825         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 826
 827         spin_lock_irqsave(&card->ip_lock, flags);
 828         tbd_list = card->ip_tbd_list;
 829         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 830         if (!card->ip_tbd_list) {
 831                 QETH_DBF_TEXT(trace, 0, "silnomem");
 832                 card->ip_tbd_list = tbd_list;
 833                 spin_unlock_irqrestore(&card->ip_lock, flags);
 834                 return;
 835         } else
 836                 INIT_LIST_HEAD(card->ip_tbd_list);
 837
 838         while (!list_empty(tbd_list)){
 839                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 840                 list_del(&todo->entry);
 841                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 842                         __qeth_delete_all_mc(card, &flags);
 843                         kfree(todo);
 844                         continue;
 845                 }
 846                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 847                 if (rc == 0) {
 848                         /* nothing to be done; only adjusted refcount */
 849                         kfree(todo);
 850                 } else if (rc == 1) {
 851                         /* new entry to be added to on-card list */
 852                         spin_unlock_irqrestore(&card->ip_lock, flags);
 853                         rc = qeth_register_addr_entry(card, todo);
 854                         spin_lock_irqsave(&card->ip_lock, flags);
 855                         if (!rc)
 856                                 list_add_tail(&todo->entry, &card->ip_list);
 857                         else
 858                                 kfree(todo);
 859                 } else if (rc == -1) {
 860                         /* on-card entry to be removed */
 861                         list_del_init(&addr->entry);
 862                         spin_unlock_irqrestore(&card->ip_lock, flags);
 863                         rc = qeth_deregister_addr_entry(card, addr);
 864                         spin_lock_irqsave(&card->ip_lock, flags);
 865                         if (!rc)
 866                                 kfree(addr);
 867                         else
 868                                 list_add_tail(&addr->entry, &card->ip_list);
 869                         kfree(todo);
 870                 }
 871         }
 872         spin_unlock_irqrestore(&card->ip_lock, flags);
 873         kfree(tbd_list);
 874 }
 875
 876 static void qeth_delete_mc_addresses(struct qeth_card *);
 877 static void qeth_add_multicast_ipv4(struct qeth_card *);
 878 static void qeth_layer2_add_multicast(struct qeth_card *);
 879 #ifdef CONFIG_QETH_IPV6
 880 static void qeth_add_multicast_ipv6(struct qeth_card *);
 881 #endif
 882
 883 static inline int
 884 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 885 {
 886         unsigned long flags;
 887
 888         spin_lock_irqsave(&card->thread_mask_lock, flags);
 889         if ( !(card->thread_allowed_mask & thread) ||
 890               (card->thread_start_mask & thread) ) {
 891                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 892                 return -EPERM;
 893         }
 894         card->thread_start_mask |= thread;
 895         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 896         return 0;
 897 }
 898
 899 static void
 900 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 901 {
 902         unsigned long flags;
 903
 904         spin_lock_irqsave(&card->thread_mask_lock, flags);
 905         card->thread_start_mask &= ~thread;
 906         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 907         wake_up(&card->wait_q);
 908 }
 909
 910 static void
 911 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 912 {
 913         unsigned long flags;
 914
 915         spin_lock_irqsave(&card->thread_mask_lock, flags);
 916         card->thread_running_mask &= ~thread;
 917         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 918         wake_up(&card->wait_q);
 919 }
 920
 921 static inline int
 922 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 923 {
 924         unsigned long flags;
 925         int rc = 0;
 926
 927         spin_lock_irqsave(&card->thread_mask_lock, flags);
 928         if (card->thread_start_mask & thread){
 929                 if ((card->thread_allowed_mask & thread) &&
 930                     !(card->thread_running_mask & thread)){
 931                         rc = 1;
 932                         card->thread_start_mask &= ~thread;
 933                         card->thread_running_mask |= thread;
 934                 } else
 935                         rc = -EPERM;
 936         }
 937         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 938         return rc;
 939 }
 940
 941 static int
 942 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 943 {
 944         int rc = 0;
 945
 946         wait_event(card->wait_q,
 947                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 948         return rc;
 949 }
 950
 951 static int
 952 qeth_register_ip_addresses(void *ptr)
 953 {
 954         struct qeth_card *card;
 955
 956         card = (struct qeth_card *) ptr;
 957         daemonize("qeth_reg_ip");
 958         QETH_DBF_TEXT(trace,4,"regipth1");
 959         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 960                 return 0;
 961         QETH_DBF_TEXT(trace,4,"regipth2");
 962         qeth_set_ip_addr_list(card);
 963         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 964         return 0;
 965 }
 966
 967 static int
 968 qeth_recover(void *ptr)
 969 {
 970         struct qeth_card *card;
 971         int rc = 0;
 972
 973         card = (struct qeth_card *) ptr;
 974         daemonize("qeth_recover");
 975         QETH_DBF_TEXT(trace,2,"recover1");
 976         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 977         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 978                 return 0;
 979         QETH_DBF_TEXT(trace,2,"recover2");
 980         PRINT_WARN("Recovery of device %s started ...\n",
 981                    CARD_BUS_ID(card));
 982         card->use_hard_stop = 1;
 983         __qeth_set_offline(card->gdev,1);
 984         rc = __qeth_set_online(card->gdev,1);
 985         if (!rc)
 986                 PRINT_INFO("Device %s successfully recovered!\n",
 987                            CARD_BUS_ID(card));
 988         else
 989                 PRINT_INFO("Device %s could not be recovered!\n",
 990                            CARD_BUS_ID(card));
 991         /* don't run another scheduled recovery */
 992         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 993         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 994         return 0;
 995 }
 996
 997 void
 998 qeth_schedule_recovery(struct qeth_card *card)
 999 {
1000         QETH_DBF_TEXT(trace,2,"startrec");
1001
1002         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1003                 schedule_work(&card->kernel_thread_starter);
1004 }
1005
1006 static int
1007 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1008 {
1009         unsigned long flags;
1010         int rc = 0;
1011
1012         spin_lock_irqsave(&card->thread_mask_lock, flags);
1013         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1014                         (u8) card->thread_start_mask,
1015                         (u8) card->thread_allowed_mask,
1016                         (u8) card->thread_running_mask);
1017         rc = (card->thread_start_mask & thread);
1018         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1019         return rc;
1020 }
1021
1022 static void
1023 qeth_start_kernel_thread(struct qeth_card *card)
1024 {
1025         QETH_DBF_TEXT(trace , 2, "strthrd");
1026
1027         if (card->read.state != CH_STATE_UP &&
1028             card->write.state != CH_STATE_UP)
1029                 return;
1030
1031         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1032                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1033         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1034                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1035 }
1036
1037
1038 static void
1039 qeth_set_intial_options(struct qeth_card *card)
1040 {
1041         card->options.route4.type = NO_ROUTER;
1042 #ifdef CONFIG_QETH_IPV6
1043         card->options.route6.type = NO_ROUTER;
1044 #endif /* QETH_IPV6 */
1045         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1046         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1047         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1048         card->options.fake_broadcast = 0;
1049         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1050         card->options.fake_ll = 0;
1051         if (card->info.type == QETH_CARD_TYPE_OSN)
1052                 card->options.layer2 = 1;
1053         else
1054                 card->options.layer2 = 0;
1055 }
1056
1057 /**
1058  * initialize channels ,card and all state machines
1059  */
1060 static int
1061 qeth_setup_card(struct qeth_card *card)
1062 {
1063
1064         QETH_DBF_TEXT(setup, 2, "setupcrd");
1065         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1066
1067         card->read.state  = CH_STATE_DOWN;
1068         card->write.state = CH_STATE_DOWN;
1069         card->data.state  = CH_STATE_DOWN;
1070         card->state = CARD_STATE_DOWN;
1071         card->lan_online = 0;
1072         card->use_hard_stop = 0;
1073         card->dev = NULL;
1074 #ifdef CONFIG_QETH_VLAN
1075         spin_lock_init(&card->vlanlock);
1076         card->vlangrp = NULL;
1077 #endif
1078         spin_lock_init(&card->lock);
1079         spin_lock_init(&card->ip_lock);
1080         spin_lock_init(&card->thread_mask_lock);
1081         card->thread_start_mask = 0;
1082         card->thread_allowed_mask = 0;
1083         card->thread_running_mask = 0;
1084         INIT_WORK(&card->kernel_thread_starter,
1085                   (void *)qeth_start_kernel_thread,card);
1086         INIT_LIST_HEAD(&card->ip_list);
1087         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1088         if (!card->ip_tbd_list) {
1089                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1090                 return -ENOMEM;
1091         }
1092         INIT_LIST_HEAD(card->ip_tbd_list);
1093         INIT_LIST_HEAD(&card->cmd_waiter_list);
1094         init_waitqueue_head(&card->wait_q);
1095         /* intial options */
1096         qeth_set_intial_options(card);
1097         /* IP address takeover */
1098         INIT_LIST_HEAD(&card->ipato.entries);
1099         card->ipato.enabled = 0;
1100         card->ipato.invert4 = 0;
1101         card->ipato.invert6 = 0;
1102         /* init QDIO stuff */
1103         qeth_init_qdio_info(card);
1104         return 0;
1105 }
1106
1107 static int
1108 is_1920_device (struct qeth_card *card)
1109 {
1110         int single_queue = 0;
1111         struct ccw_device *ccwdev;
1112         struct channelPath_dsc {
1113                 u8 flags;
1114                 u8 lsn;
1115                 u8 desc;
1116                 u8 chpid;
1117                 u8 swla;
1118                 u8 zeroes;
1119                 u8 chla;
1120                 u8 chpp;
1121         } *chp_dsc;
1122
1123         QETH_DBF_TEXT(setup, 2, "chk_1920");
1124
1125         ccwdev = card->data.ccwdev;
1126         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1127         if (chp_dsc != NULL) {
1128                 /* CHPP field bit 6 == 1 -> single queue */
1129                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1130                 kfree(chp_dsc);
1131         }
1132         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1133         return single_queue;
1134 }
1135
1136 static int
1137 qeth_determine_card_type(struct qeth_card *card)
1138 {
1139         int i = 0;
1140
1141         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1142
1143         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1144         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1145         while (known_devices[i][4]) {
1146                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1147                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1148                         card->info.type = known_devices[i][4];
1149                         card->qdio.no_out_queues = known_devices[i][8];
1150                         card->info.is_multicast_different = known_devices[i][9];
1151                         if (is_1920_device(card)) {
1152                                 PRINT_INFO("Priority Queueing not able "
1153                                            "due to hardware limitations!\n");
1154                                 card->qdio.no_out_queues = 1;
1155                                 card->qdio.default_out_queue = 0;
1156                         }
1157                         return 0;
1158                 }
1159                 i++;
1160         }
1161         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1162         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1163         return -ENOENT;
1164 }
1165
1166 static int
1167 qeth_probe_device(struct ccwgroup_device *gdev)
1168 {
1169         struct qeth_card *card;
1170         struct device *dev;
1171         unsigned long flags;
1172         int rc;
1173
1174         QETH_DBF_TEXT(setup, 2, "probedev");
1175
1176         dev = &gdev->dev;
1177         if (!get_device(dev))
1178                 return -ENODEV;
1179
1180         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1181
1182         card = qeth_alloc_card();
1183         if (!card) {
1184                 put_device(dev);
1185                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1186                 return -ENOMEM;
1187         }
1188         card->read.ccwdev  = gdev->cdev[0];
1189         card->write.ccwdev = gdev->cdev[1];
1190         card->data.ccwdev  = gdev->cdev[2];
1191         gdev->dev.driver_data = card;
1192         card->gdev = gdev;
1193         gdev->cdev[0]->handler = qeth_irq;
1194         gdev->cdev[1]->handler = qeth_irq;
1195         gdev->cdev[2]->handler = qeth_irq;
1196
1197         if ((rc = qeth_determine_card_type(card))){
1198                 PRINT_WARN("%s: not a valid card type\n", __func__);
1199                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1200                 put_device(dev);
1201                 qeth_free_card(card);
1202                 return rc;
1203         }
1204         if ((rc = qeth_setup_card(card))){
1205                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1206                 put_device(dev);
1207                 qeth_free_card(card);
1208                 return rc;
1209         }
1210         rc = qeth_create_device_attributes(dev);
1211         if (rc) {
1212                 put_device(dev);
1213                 qeth_free_card(card);
1214                 return rc;
1215         }
1216         /* insert into our internal list */
1217         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1218         list_add_tail(&card->list, &qeth_card_list.list);
1219         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1220         return rc;
1221 }
1222
1223
1224 static int
1225 qeth_get_unitaddr(struct qeth_card *card)
1226 {
1227         int length;
1228         char *prcd;
1229         int rc;
1230
1231         QETH_DBF_TEXT(setup, 2, "getunit");
1232         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1233         if (rc) {
1234                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1235                           CARD_DDEV_ID(card), rc);
1236                 return rc;
1237         }
1238         card->info.chpid = prcd[30];
1239         card->info.unit_addr2 = prcd[31];
1240         card->info.cula = prcd[63];
1241         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1242                                (prcd[0x11] == _ascebc['M']));
1243         return 0;
1244 }
1245
1246 static void
1247 qeth_init_tokens(struct qeth_card *card)
1248 {
1249         card->token.issuer_rm_w = 0x00010103UL;
1250         card->token.cm_filter_w = 0x00010108UL;
1251         card->token.cm_connection_w = 0x0001010aUL;
1252         card->token.ulp_filter_w = 0x0001010bUL;
1253         card->token.ulp_connection_w = 0x0001010dUL;
1254 }
1255
1256 static inline __u16
1257 raw_devno_from_bus_id(char *id)
1258 {
1259         id += (strlen(id) - 4);
1260         return (__u16) simple_strtoul(id, &id, 16);
1261 }
1262 /**
1263  * setup channel
1264  */
1265 static void
1266 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1267 {
1268         struct qeth_card *card;
1269
1270         QETH_DBF_TEXT(trace, 4, "setupccw");
1271         card = CARD_FROM_CDEV(channel->ccwdev);
1272         if (channel == &card->read)
1273                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1274         else
1275                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1276         channel->ccw.count = len;
1277         channel->ccw.cda = (__u32) __pa(iob);
1278 }
1279
1280 /**
1281  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1282  */
1283 static struct qeth_cmd_buffer *
1284 __qeth_get_buffer(struct qeth_channel *channel)
1285 {
1286         __u8 index;
1287
1288         QETH_DBF_TEXT(trace, 6, "getbuff");
1289         index = channel->io_buf_no;
1290         do {
1291                 if (channel->iob[index].state == BUF_STATE_FREE) {
1292                         channel->iob[index].state = BUF_STATE_LOCKED;
1293                         channel->io_buf_no = (channel->io_buf_no + 1) %
1294                                 QETH_CMD_BUFFER_NO;
1295                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1296                         return channel->iob + index;
1297                 }
1298                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1299         } while(index != channel->io_buf_no);
1300
1301         return NULL;
1302 }
1303
1304 /**
1305  * release command buffer
1306  */
1307 static void
1308 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1309 {
1310         unsigned long flags;
1311
1312         QETH_DBF_TEXT(trace, 6, "relbuff");
1313         spin_lock_irqsave(&channel->iob_lock, flags);
1314         memset(iob->data, 0, QETH_BUFSIZE);
1315         iob->state = BUF_STATE_FREE;
1316         iob->callback = qeth_send_control_data_cb;
1317         iob->rc = 0;
1318         spin_unlock_irqrestore(&channel->iob_lock, flags);
1319 }
1320
1321 static struct qeth_cmd_buffer *
1322 qeth_get_buffer(struct qeth_channel *channel)
1323 {
1324         struct qeth_cmd_buffer *buffer = NULL;
1325         unsigned long flags;
1326
1327         spin_lock_irqsave(&channel->iob_lock, flags);
1328         buffer = __qeth_get_buffer(channel);
1329         spin_unlock_irqrestore(&channel->iob_lock, flags);
1330         return buffer;
1331 }
1332
1333 static struct qeth_cmd_buffer *
1334 qeth_wait_for_buffer(struct qeth_channel *channel)
1335 {
1336         struct qeth_cmd_buffer *buffer;
1337         wait_event(channel->wait_q,
1338                    ((buffer = qeth_get_buffer(channel)) != NULL));
1339         return buffer;
1340 }
1341
1342 static void
1343 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1344 {
1345         int cnt = 0;
1346
1347         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1348                 qeth_release_buffer(channel,&channel->iob[cnt]);
1349         channel->buf_no = 0;
1350         channel->io_buf_no = 0;
1351 }
1352
1353 /**
1354  * start IDX for read and write channel
1355  */
1356 static int
1357 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1358                               void (*idx_reply_cb)(struct qeth_channel *,
1359                                                    struct qeth_cmd_buffer *))
1360 {
1361         struct qeth_cmd_buffer *iob;
1362         unsigned long flags;
1363         int rc;
1364         struct qeth_card *card;
1365
1366         QETH_DBF_TEXT(setup, 2, "idxanswr");
1367         card = CARD_FROM_CDEV(channel->ccwdev);
1368         iob = qeth_get_buffer(channel);
1369         iob->callback = idx_reply_cb;
1370         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1371         channel->ccw.count = QETH_BUFSIZE;
1372         channel->ccw.cda = (__u32) __pa(iob->data);
1373
1374         wait_event(card->wait_q,
1375                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1376         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1377         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1378         rc = ccw_device_start(channel->ccwdev,
1379                               &channel->ccw,(addr_t) iob, 0, 0);
1380         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1381
1382         if (rc) {
1383                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1384                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1385                 atomic_set(&channel->irq_pending, 0);
1386                 wake_up(&card->wait_q);
1387                 return rc;
1388         }
1389         rc = wait_event_interruptible_timeout(card->wait_q,
1390                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1391         if (rc == -ERESTARTSYS)
1392                 return rc;
1393         if (channel->state != CH_STATE_UP){
1394                 rc = -ETIME;
1395                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1396                 qeth_clear_cmd_buffers(channel);
1397         } else
1398                 rc = 0;
1399         return rc;
1400 }
1401
1402 static int
1403 qeth_idx_activate_channel(struct qeth_channel *channel,
1404                            void (*idx_reply_cb)(struct qeth_channel *,
1405                                                 struct qeth_cmd_buffer *))
1406 {
1407         struct qeth_card *card;
1408         struct qeth_cmd_buffer *iob;
1409         unsigned long flags;
1410         __u16 temp;
1411         int rc;
1412
1413         card = CARD_FROM_CDEV(channel->ccwdev);
1414
1415         QETH_DBF_TEXT(setup, 2, "idxactch");
1416
1417         iob = qeth_get_buffer(channel);
1418         iob->callback = idx_reply_cb;
1419         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1420         channel->ccw.count = IDX_ACTIVATE_SIZE;
1421         channel->ccw.cda = (__u32) __pa(iob->data);
1422         if (channel == &card->write) {
1423                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1424                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1425                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1426                 card->seqno.trans_hdr++;
1427         } else {
1428                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1429                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1430                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1431         }
1432         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1433                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1434         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1435                &card->info.func_level,sizeof(__u16));
1436         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1437         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1438         temp = (card->info.cula << 8) + card->info.unit_addr2;
1439         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1440
1441         wait_event(card->wait_q,
1442                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1443         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1444         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1445         rc = ccw_device_start(channel->ccwdev,
1446                               &channel->ccw,(addr_t) iob, 0, 0);
1447         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1448
1449         if (rc) {
1450                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1451                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1452                 atomic_set(&channel->irq_pending, 0);
1453                 wake_up(&card->wait_q);
1454                 return rc;
1455         }
1456         rc = wait_event_interruptible_timeout(card->wait_q,
1457                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1458         if (rc == -ERESTARTSYS)
1459                 return rc;
1460         if (channel->state != CH_STATE_ACTIVATING) {
1461                 PRINT_WARN("qeth: IDX activate timed out!\n");
1462                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1463                 qeth_clear_cmd_buffers(channel);
1464                 return -ETIME;
1465         }
1466         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1467 }
1468
1469 static int
1470 qeth_peer_func_level(int level)
1471 {
1472         if ((level & 0xff) == 8)
1473                 return (level & 0xff) + 0x400;
1474         if (((level >> 8) & 3) == 1)
1475                 return (level & 0xff) + 0x200;
1476         return level;
1477 }
1478
1479 static void
1480 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1481 {
1482         struct qeth_card *card;
1483         __u16 temp;
1484
1485         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1486
1487         if (channel->state == CH_STATE_DOWN) {
1488                 channel->state = CH_STATE_ACTIVATING;
1489                 goto out;
1490         }
1491         card = CARD_FROM_CDEV(channel->ccwdev);
1492
1493         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1494                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1495                           "reply\n", CARD_WDEV_ID(card));
1496                 goto out;
1497         }
1498         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1499         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1500                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1501                            "function level mismatch "
1502                            "(sent: 0x%x, received: 0x%x)\n",
1503                            CARD_WDEV_ID(card), card->info.func_level, temp);
1504                 goto out;
1505         }
1506         channel->state = CH_STATE_UP;
1507 out:
1508         qeth_release_buffer(channel, iob);
1509 }
1510
1511 static int
1512 qeth_check_idx_response(unsigned char *buffer)
1513 {
1514         if (!buffer)
1515                 return 0;
1516
1517         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1518         if ((buffer[2] & 0xc0) == 0xc0) {
1519                 PRINT_WARN("received an IDX TERMINATE "
1520                            "with cause code 0x%02x%s\n",
1521                            buffer[4],
1522                            ((buffer[4] == 0x22) ?
1523                             " -- try another portname" : ""));
1524                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1525                 QETH_DBF_TEXT(trace, 2, " idxterm");
1526                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1527                 return -EIO;
1528         }
1529         return 0;
1530 }
1531
1532 static void
1533 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1534 {
1535         struct qeth_card *card;
1536         __u16 temp;
1537
1538         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1539         if (channel->state == CH_STATE_DOWN) {
1540                 channel->state = CH_STATE_ACTIVATING;
1541                 goto out;
1542         }
1543
1544         card = CARD_FROM_CDEV(channel->ccwdev);
1545         if (qeth_check_idx_response(iob->data)) {
1546                         goto out;
1547         }
1548         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1549                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1550                           "reply\n", CARD_RDEV_ID(card));
1551                 goto out;
1552         }
1553
1554 /**
1555  * temporary fix for microcode bug
1556  * to revert it,replace OR by AND
1557  */
1558         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1559              (card->info.type == QETH_CARD_TYPE_OSAE) )
1560                 card->info.portname_required = 1;
1561
1562         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1563         if (temp != qeth_peer_func_level(card->info.func_level)) {
1564                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1565                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1566                            CARD_RDEV_ID(card), card->info.func_level, temp);
1567                 goto out;
1568         }
1569         memcpy(&card->token.issuer_rm_r,
1570                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1571                QETH_MPC_TOKEN_LENGTH);
1572         memcpy(&card->info.mcl_level[0],
1573                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1574         channel->state = CH_STATE_UP;
1575 out:
1576         qeth_release_buffer(channel,iob);
1577 }
1578
1579 static int
1580 qeth_issue_next_read(struct qeth_card *card)
1581 {
1582         int rc;
1583         struct qeth_cmd_buffer *iob;
1584
1585         QETH_DBF_TEXT(trace,5,"issnxrd");
1586         if (card->read.state != CH_STATE_UP)
1587                 return -EIO;
1588         iob = qeth_get_buffer(&card->read);
1589         if (!iob) {
1590                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1591                 return -ENOMEM;
1592         }
1593         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1594         wait_event(card->wait_q,
1595                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1596         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1597         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1598                               (addr_t) iob, 0, 0);
1599         if (rc) {
1600                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1601                 atomic_set(&card->read.irq_pending, 0);
1602                 qeth_schedule_recovery(card);
1603                 wake_up(&card->wait_q);
1604         }
1605         return rc;
1606 }
1607
1608 static struct qeth_reply *
1609 qeth_alloc_reply(struct qeth_card *card)
1610 {
1611         struct qeth_reply *reply;
1612
1613         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1614         if (reply){
1615                 memset(reply, 0, sizeof(struct qeth_reply));
1616                 atomic_set(&reply->refcnt, 1);
1617                 reply->card = card;
1618         };
1619         return reply;
1620 }
1621
1622 static void
1623 qeth_get_reply(struct qeth_reply *reply)
1624 {
1625         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1626         atomic_inc(&reply->refcnt);
1627 }
1628
1629 static void
1630 qeth_put_reply(struct qeth_reply *reply)
1631 {
1632         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1633         if (atomic_dec_and_test(&reply->refcnt))
1634                 kfree(reply);
1635 }
1636
1637 static void
1638 qeth_cmd_timeout(unsigned long data)
1639 {
1640         struct qeth_reply *reply, *list_reply, *r;
1641         unsigned long flags;
1642
1643         reply = (struct qeth_reply *) data;
1644         spin_lock_irqsave(&reply->card->lock, flags);
1645         list_for_each_entry_safe(list_reply, r,
1646                                  &reply->card->cmd_waiter_list, list) {
1647                 if (reply == list_reply){
1648                         qeth_get_reply(reply);
1649                         list_del_init(&reply->list);
1650                         spin_unlock_irqrestore(&reply->card->lock, flags);
1651                         reply->rc = -ETIME;
1652                         reply->received = 1;
1653                         wake_up(&reply->wait_q);
1654                         qeth_put_reply(reply);
1655                         return;
1656                 }
1657         }
1658         spin_unlock_irqrestore(&reply->card->lock, flags);
1659 }
1660
1661 static struct qeth_ipa_cmd *
1662 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1663 {
1664         struct qeth_ipa_cmd *cmd = NULL;
1665
1666         QETH_DBF_TEXT(trace,5,"chkipad");
1667         if (IS_IPA(iob->data)){
1668                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1669                 if (IS_IPA_REPLY(cmd))
1670                         return cmd;
1671                 else {
1672                         switch (cmd->hdr.command) {
1673                         case IPA_CMD_STOPLAN:
1674                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1675                                            "there is a network problem or "
1676                                            "someone pulled the cable or "
1677                                            "disabled the port.\n",
1678                                            QETH_CARD_IFNAME(card),
1679                                            card->info.chpid);
1680                                 card->lan_online = 0;
1681                                 netif_carrier_off(card->dev);
1682                                 return NULL;
1683                         case IPA_CMD_STARTLAN:
1684                                 PRINT_INFO("Link reestablished on %s "
1685                                            "(CHPID 0x%X). Scheduling "
1686                                            "IP address reset.\n",
1687                                            QETH_CARD_IFNAME(card),
1688                                            card->info.chpid);
1689                                 netif_carrier_on(card->dev);
1690                                 qeth_schedule_recovery(card);
1691                                 return NULL;
1692                         case IPA_CMD_MODCCID:
1693                                 return cmd;
1694                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1695                                 QETH_DBF_TEXT(trace,3, "irla");
1696                                 break;
1697                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1698                                 QETH_DBF_TEXT(trace,3, "urla");
1699                                 break;
1700                         default:
1701                                 PRINT_WARN("Received data is IPA "
1702                                            "but not a reply!\n");
1703                                 break;
1704                         }
1705                 }
1706         }
1707         return cmd;
1708 }
1709
1710 /**
1711  * wake all waiting ipa commands
1712  */
1713 static void
1714 qeth_clear_ipacmd_list(struct qeth_card *card)
1715 {
1716         struct qeth_reply *reply, *r;
1717         unsigned long flags;
1718
1719         QETH_DBF_TEXT(trace, 4, "clipalst");
1720
1721         spin_lock_irqsave(&card->lock, flags);
1722         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1723                 qeth_get_reply(reply);
1724                 reply->rc = -EIO;
1725                 reply->received = 1;
1726                 list_del_init(&reply->list);
1727                 wake_up(&reply->wait_q);
1728                 qeth_put_reply(reply);
1729         }
1730         spin_unlock_irqrestore(&card->lock, flags);
1731 }
1732
1733 static void
1734 qeth_send_control_data_cb(struct qeth_channel *channel,
1735                           struct qeth_cmd_buffer *iob)
1736 {
1737         struct qeth_card *card;
1738         struct qeth_reply *reply, *r;
1739         struct qeth_ipa_cmd *cmd;
1740         unsigned long flags;
1741         int keep_reply;
1742
1743         QETH_DBF_TEXT(trace,4,"sndctlcb");
1744
1745         card = CARD_FROM_CDEV(channel->ccwdev);
1746         if (qeth_check_idx_response(iob->data)) {
1747                 qeth_clear_ipacmd_list(card);
1748                 qeth_schedule_recovery(card);
1749                 goto out;
1750         }
1751
1752         cmd = qeth_check_ipa_data(card, iob);
1753         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1754                 goto out;
1755         /*in case of OSN : check if cmd is set */
1756         if (card->info.type == QETH_CARD_TYPE_OSN &&
1757             cmd &&
1758             cmd->hdr.command != IPA_CMD_STARTLAN &&
1759             card->osn_info.assist_cb != NULL) {
1760                 card->osn_info.assist_cb(card->dev, cmd);
1761                 goto out;
1762         }
1763
1764         spin_lock_irqsave(&card->lock, flags);
1765         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1766                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1767                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1768                         qeth_get_reply(reply);
1769                         list_del_init(&reply->list);
1770                         spin_unlock_irqrestore(&card->lock, flags);
1771                         keep_reply = 0;
1772                         if (reply->callback != NULL) {
1773                                 if (cmd) {
1774                                         reply->offset = (__u16)((char*)cmd -
1775                                                                 (char *)iob->data);
1776                                         keep_reply = reply->callback(card,
1777                                                         reply,
1778                                                         (unsigned long)cmd);
1779                                 } else
1780                                         keep_reply = reply->callback(card,
1781                                                         reply,
1782                                                         (unsigned long)iob);
1783                         }
1784                         if (cmd)
1785                                 reply->rc = (u16) cmd->hdr.return_code;
1786                         else if (iob->rc)
1787                                 reply->rc = iob->rc;
1788                         if (keep_reply) {
1789                                 spin_lock_irqsave(&card->lock, flags);
1790                                 list_add_tail(&reply->list,
1791                                               &card->cmd_waiter_list);
1792                                 spin_unlock_irqrestore(&card->lock, flags);
1793                         } else {
1794                                 reply->received = 1;
1795                                 wake_up(&reply->wait_q);
1796                         }
1797                         qeth_put_reply(reply);
1798                         goto out;
1799                 }
1800         }
1801         spin_unlock_irqrestore(&card->lock, flags);
1802 out:
1803         memcpy(&card->seqno.pdu_hdr_ack,
1804                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1805                 QETH_SEQ_NO_LENGTH);
1806         qeth_release_buffer(channel,iob);
1807 }
1808
1809 static inline void
1810 qeth_prepare_control_data(struct qeth_card *card, int len,
1811 struct qeth_cmd_buffer *iob)
1812 {
1813         qeth_setup_ccw(&card->write,iob->data,len);
1814         iob->callback = qeth_release_buffer;
1815
1816         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1817                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1818         card->seqno.trans_hdr++;
1819         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1820                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1821         card->seqno.pdu_hdr++;
1822         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1823                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1824         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1825 }
1826
1827 static int
1828 qeth_send_control_data(struct qeth_card *card, int len,
1829                        struct qeth_cmd_buffer *iob,
1830                        int (*reply_cb)
1831                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1832                        void *reply_param)
1833
1834 {
1835         int rc;
1836         unsigned long flags;
1837         struct qeth_reply *reply = NULL;
1838         struct timer_list timer;
1839
1840         QETH_DBF_TEXT(trace, 2, "sendctl");
1841
1842         reply = qeth_alloc_reply(card);
1843         if (!reply) {
1844                 PRINT_WARN("Could no alloc qeth_reply!\n");
1845                 return -ENOMEM;
1846         }
1847         reply->callback = reply_cb;
1848         reply->param = reply_param;
1849         if (card->state == CARD_STATE_DOWN)
1850                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1851         else
1852                 reply->seqno = card->seqno.ipa++;
1853         init_timer(&timer);
1854         timer.function = qeth_cmd_timeout;
1855         timer.data = (unsigned long) reply;
1856         init_waitqueue_head(&reply->wait_q);
1857         spin_lock_irqsave(&card->lock, flags);
1858         list_add_tail(&reply->list, &card->cmd_waiter_list);
1859         spin_unlock_irqrestore(&card->lock, flags);
1860         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1861         wait_event(card->wait_q,
1862                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1863         qeth_prepare_control_data(card, len, iob);
1864         if (IS_IPA(iob->data))
1865                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1866         else
1867                 timer.expires = jiffies + QETH_TIMEOUT;
1868         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1869         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1870         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1871                               (addr_t) iob, 0, 0);
1872         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1873         if (rc){
1874                 PRINT_WARN("qeth_send_control_data: "
1875                            "ccw_device_start rc = %i\n", rc);
1876                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1877                 spin_lock_irqsave(&card->lock, flags);
1878                 list_del_init(&reply->list);
1879                 qeth_put_reply(reply);
1880                 spin_unlock_irqrestore(&card->lock, flags);
1881                 qeth_release_buffer(iob->channel, iob);
1882                 atomic_set(&card->write.irq_pending, 0);
1883                 wake_up(&card->wait_q);
1884                 return rc;
1885         }
1886         add_timer(&timer);
1887         wait_event(reply->wait_q, reply->received);
1888         del_timer_sync(&timer);
1889         rc = reply->rc;
1890         qeth_put_reply(reply);
1891         return rc;
1892 }
1893
1894 static int
1895 qeth_osn_send_control_data(struct qeth_card *card, int len,
1896                            struct qeth_cmd_buffer *iob)
1897 {
1898         unsigned long flags;
1899         int rc = 0;
1900
1901         QETH_DBF_TEXT(trace, 5, "osndctrd");
1902
1903         wait_event(card->wait_q,
1904                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1905         qeth_prepare_control_data(card, len, iob);
1906         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1907         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1908         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1909                               (addr_t) iob, 0, 0);
1910         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1911         if (rc){
1912                 PRINT_WARN("qeth_osn_send_control_data: "
1913                            "ccw_device_start rc = %i\n", rc);
1914                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1915                 qeth_release_buffer(iob->channel, iob);
1916                 atomic_set(&card->write.irq_pending, 0);
1917                 wake_up(&card->wait_q);
1918         }
1919         return rc;
1920 }
1921
1922 static inline void
1923 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1924                      char prot_type)
1925 {
1926         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1927         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1928         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1929                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1930 }
1931
1932 static int
1933 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1934                       int data_len)
1935 {
1936         u16 s1, s2;
1937
1938 QETH_DBF_TEXT(trace,4,"osndipa");
1939
1940         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1941         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1942         s2 = (u16)data_len;
1943         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1944         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1945         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1946         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1947         return qeth_osn_send_control_data(card, s1, iob);
1948 }
1949
1950 static int
1951 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1952                   int (*reply_cb)
1953                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1954                   void *reply_param)
1955 {
1956         int rc;
1957         char prot_type;
1958
1959         QETH_DBF_TEXT(trace,4,"sendipa");
1960
1961         if (card->options.layer2)
1962                 if (card->info.type == QETH_CARD_TYPE_OSN)
1963                         prot_type = QETH_PROT_OSN2;
1964                 else
1965                         prot_type = QETH_PROT_LAYER2;
1966         else
1967                 prot_type = QETH_PROT_TCPIP;
1968         qeth_prepare_ipa_cmd(card,iob,prot_type);
1969         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1970                                     reply_cb, reply_param);
1971         return rc;
1972 }
1973
1974
1975 static int
1976 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1977                   unsigned long data)
1978 {
1979         struct qeth_cmd_buffer *iob;
1980
1981         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1982
1983         iob = (struct qeth_cmd_buffer *) data;
1984         memcpy(&card->token.cm_filter_r,
1985                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1986                QETH_MPC_TOKEN_LENGTH);
1987         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1988         return 0;
1989 }
1990
1991 static int
1992 qeth_cm_enable(struct qeth_card *card)
1993 {
1994         int rc;
1995         struct qeth_cmd_buffer *iob;
1996
1997         QETH_DBF_TEXT(setup,2,"cmenable");
1998
1999         iob = qeth_wait_for_buffer(&card->write);
2000         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2001         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2002                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2003         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2004                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2005
2006         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2007                                     qeth_cm_enable_cb, NULL);
2008         return rc;
2009 }
2010
2011 static int
2012 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2013                  unsigned long data)
2014 {
2015
2016         struct qeth_cmd_buffer *iob;
2017
2018         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2019
2020         iob = (struct qeth_cmd_buffer *) data;
2021         memcpy(&card->token.cm_connection_r,
2022                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2023                QETH_MPC_TOKEN_LENGTH);
2024         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2025         return 0;
2026 }
2027
2028 static int
2029 qeth_cm_setup(struct qeth_card *card)
2030 {
2031         int rc;
2032         struct qeth_cmd_buffer *iob;
2033
2034         QETH_DBF_TEXT(setup,2,"cmsetup");
2035
2036         iob = qeth_wait_for_buffer(&card->write);
2037         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2038         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2039                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2040         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2041                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2042         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2043                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2044         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2045                                     qeth_cm_setup_cb, NULL);
2046         return rc;
2047
2048 }
2049
2050 static int
2051 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2052                    unsigned long data)
2053 {
2054
2055         __u16 mtu, framesize;
2056         __u16 len;
2057         __u8 link_type;
2058         struct qeth_cmd_buffer *iob;
2059
2060         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2061
2062         iob = (struct qeth_cmd_buffer *) data;
2063         memcpy(&card->token.ulp_filter_r,
2064                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2065                QETH_MPC_TOKEN_LENGTH);
2066         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2067                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2068                 mtu = qeth_get_mtu_outof_framesize(framesize);
2069                 if (!mtu) {
2070                         iob->rc = -EINVAL;
2071                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2072                         return 0;
2073                 }
2074                 card->info.max_mtu = mtu;
2075                 card->info.initial_mtu = mtu;
2076                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2077         } else {
2078                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2079                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2080                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2081         }
2082
2083         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2084         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2085                 memcpy(&link_type,
2086                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2087                 card->info.link_type = link_type;
2088         } else
2089                 card->info.link_type = 0;
2090         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2091         return 0;
2092 }
2093
2094 static int
2095 qeth_ulp_enable(struct qeth_card *card)
2096 {
2097         int rc;
2098         char prot_type;
2099         struct qeth_cmd_buffer *iob;
2100
2101         /*FIXME: trace view callbacks*/
2102         QETH_DBF_TEXT(setup,2,"ulpenabl");
2103
2104         iob = qeth_wait_for_buffer(&card->write);
2105         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2106
2107         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2108                 (__u8) card->info.portno;
2109         if (card->options.layer2)
2110                 if (card->info.type == QETH_CARD_TYPE_OSN)
2111                         prot_type = QETH_PROT_OSN2;
2112                 else
2113                         prot_type = QETH_PROT_LAYER2;
2114         else
2115                 prot_type = QETH_PROT_TCPIP;
2116
2117         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2118         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2119                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2120         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2121                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2122         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2123                card->info.portname, 9);
2124         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2125                                     qeth_ulp_enable_cb, NULL);
2126         return rc;
2127
2128 }
2129
2130 static inline __u16
2131 __raw_devno_from_bus_id(char *id)
2132 {
2133         id += (strlen(id) - 4);
2134         return (__u16) simple_strtoul(id, &id, 16);
2135 }
2136
2137 static int
2138 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2139                   unsigned long data)
2140 {
2141         struct qeth_cmd_buffer *iob;
2142
2143         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2144
2145         iob = (struct qeth_cmd_buffer *) data;
2146         memcpy(&card->token.ulp_connection_r,
2147                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2148                QETH_MPC_TOKEN_LENGTH);
2149         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2150         return 0;
2151 }
2152
2153 static int
2154 qeth_ulp_setup(struct qeth_card *card)
2155 {
2156         int rc;
2157         __u16 temp;
2158         struct qeth_cmd_buffer *iob;
2159
2160         QETH_DBF_TEXT(setup,2,"ulpsetup");
2161
2162         iob = qeth_wait_for_buffer(&card->write);
2163         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2164
2165         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2166                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2167         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2168                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2169         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2170                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2171
2172         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2173         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2174         temp = (card->info.cula << 8) + card->info.unit_addr2;
2175         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2176         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2177                                     qeth_ulp_setup_cb, NULL);
2178         return rc;
2179 }
2180
2181 static inline int
2182 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2183                              unsigned int qdio_error,
2184                              unsigned int siga_error)
2185 {
2186         int rc = 0;
2187
2188         if (qdio_error || siga_error) {
2189                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2190                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2191                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2192                                buf->buffer->element[15].flags & 0xff);
2193                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2194                                buf->buffer->element[14].flags & 0xff);
2195                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2196                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2197                 rc = 1;
2198         }
2199         return rc;
2200 }
2201
2202 static inline struct sk_buff *
2203 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2204 {
2205         struct sk_buff* skb;
2206         int add_len;
2207
2208         add_len = 0;
2209         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2210                 add_len = sizeof(struct qeth_hdr);
2211 #ifdef CONFIG_QETH_VLAN
2212         else
2213                 add_len = VLAN_HLEN;
2214 #endif
2215         skb = dev_alloc_skb(length + add_len);
2216         if (skb && add_len)
2217                 skb_reserve(skb, add_len);
2218         return skb;
2219 }
2220
2221 static inline struct sk_buff *
2222 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2223                   struct qdio_buffer_element **__element, int *__offset,
2224                   struct qeth_hdr **hdr)
2225 {
2226         struct qdio_buffer_element *element = *__element;
2227         int offset = *__offset;
2228         struct sk_buff *skb = NULL;
2229         int skb_len;
2230         void *data_ptr;
2231         int data_len;
2232
2233         QETH_DBF_TEXT(trace,6,"nextskb");
2234         /* qeth_hdr must not cross element boundaries */
2235         if (element->length < offset + sizeof(struct qeth_hdr)){
2236                 if (qeth_is_last_sbale(element))
2237                         return NULL;
2238                 element++;
2239                 offset = 0;
2240                 if (element->length < sizeof(struct qeth_hdr))
2241                         return NULL;
2242         }
2243         *hdr = element->addr + offset;
2244
2245         offset += sizeof(struct qeth_hdr);
2246         if (card->options.layer2)
2247                 if (card->info.type == QETH_CARD_TYPE_OSN)
2248                         skb_len = (*hdr)->hdr.osn.pdu_length;
2249                 else
2250                         skb_len = (*hdr)->hdr.l2.pkt_length;
2251         else
2252                 skb_len = (*hdr)->hdr.l3.length;
2253
2254         if (!skb_len)
2255                 return NULL;
2256         if (card->options.fake_ll){
2257                 if(card->dev->type == ARPHRD_IEEE802_TR){
2258                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2259                                 goto no_mem;
2260                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2261                 } else {
2262                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2263                                 goto no_mem;
2264                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2265                 }
2266         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2267                 goto no_mem;
2268         data_ptr = element->addr + offset;
2269         while (skb_len) {
2270                 data_len = min(skb_len, (int)(element->length - offset));
2271                 if (data_len)
2272                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2273                 skb_len -= data_len;
2274                 if (skb_len){
2275                         if (qeth_is_last_sbale(element)){
2276                                 QETH_DBF_TEXT(trace,4,"unexeob");
2277                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2278                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2279                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2280                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2281                                 dev_kfree_skb_any(skb);
2282                                 card->stats.rx_errors++;
2283                                 return NULL;
2284                         }
2285                         element++;
2286                         offset = 0;
2287                         data_ptr = element->addr;
2288                 } else {
2289                         offset += data_len;
2290                 }
2291         }
2292         *__element = element;
2293         *__offset = offset;
2294         return skb;
2295 no_mem:
2296         if (net_ratelimit()){
2297                 PRINT_WARN("No memory for packet received on %s.\n",
2298                            QETH_CARD_IFNAME(card));
2299                 QETH_DBF_TEXT(trace,2,"noskbmem");
2300                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2301         }
2302         card->stats.rx_dropped++;
2303         return NULL;
2304 }
2305
2306 static inline __be16
2307 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2308 {
2309         struct qeth_card *card;
2310         struct ethhdr *eth;
2311
2312         QETH_DBF_TEXT(trace,6,"typtrans");
2313
2314         card = (struct qeth_card *)dev->priv;
2315 #ifdef CONFIG_TR
2316         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2317             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2318                 return tr_type_trans(skb,dev);
2319 #endif /* CONFIG_TR */
2320         skb->mac.raw = skb->data;
2321         skb_pull(skb, ETH_HLEN );
2322         eth = eth_hdr(skb);
2323
2324         if (*eth->h_dest & 1) {
2325                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2326                         skb->pkt_type = PACKET_BROADCAST;
2327                 else
2328                         skb->pkt_type = PACKET_MULTICAST;
2329         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2330                 skb->pkt_type = PACKET_OTHERHOST;
2331
2332         if (ntohs(eth->h_proto) >= 1536)
2333                 return eth->h_proto;
2334         if (*(unsigned short *) (skb->data) == 0xFFFF)
2335                 return htons(ETH_P_802_3);
2336         return htons(ETH_P_802_2);
2337 }
2338
2339 static inline void
2340 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2341                          struct qeth_hdr *hdr)
2342 {
2343         struct trh_hdr *fake_hdr;
2344         struct trllc *fake_llc;
2345         struct iphdr *ip_hdr;
2346
2347         QETH_DBF_TEXT(trace,5,"skbfktr");
2348         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2349         /* this is a fake ethernet header */
2350         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2351
2352         /* the destination MAC address */
2353         switch (skb->pkt_type){
2354         case PACKET_MULTICAST:
2355                 switch (skb->protocol){
2356 #ifdef CONFIG_QETH_IPV6
2357                 case __constant_htons(ETH_P_IPV6):
2358                         ndisc_mc_map((struct in6_addr *)
2359                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2360                                      fake_hdr->daddr, card->dev, 0);
2361                         break;
2362 #endif /* CONFIG_QETH_IPV6 */
2363                 case __constant_htons(ETH_P_IP):
2364                         ip_hdr = (struct iphdr *)skb->data;
2365                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2366                         break;
2367                 default:
2368                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2369                 }
2370                 break;
2371         case PACKET_BROADCAST:
2372                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2373                 break;
2374         default:
2375                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2376         }
2377         /* the source MAC address */
2378         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2379                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2380         else
2381                 memset(fake_hdr->saddr, 0, TR_ALEN);
2382         fake_hdr->rcf=0;
2383         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2384         fake_llc->dsap = EXTENDED_SAP;
2385         fake_llc->ssap = EXTENDED_SAP;
2386         fake_llc->llc  = UI_CMD;
2387         fake_llc->protid[0] = 0;
2388         fake_llc->protid[1] = 0;
2389         fake_llc->protid[2] = 0;
2390         fake_llc->ethertype = ETH_P_IP;
2391 }
2392
2393 static inline void
2394 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2395                          struct qeth_hdr *hdr)
2396 {
2397         struct ethhdr *fake_hdr;
2398         struct iphdr *ip_hdr;
2399
2400         QETH_DBF_TEXT(trace,5,"skbfketh");
2401         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2402         /* this is a fake ethernet header */
2403         fake_hdr = (struct ethhdr *) skb->mac.raw;
2404
2405         /* the destination MAC address */
2406         switch (skb->pkt_type){
2407         case PACKET_MULTICAST:
2408                 switch (skb->protocol){
2409 #ifdef CONFIG_QETH_IPV6
2410                 case __constant_htons(ETH_P_IPV6):
2411                         ndisc_mc_map((struct in6_addr *)
2412                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2413                                      fake_hdr->h_dest, card->dev, 0);
2414                         break;
2415 #endif /* CONFIG_QETH_IPV6 */
2416                 case __constant_htons(ETH_P_IP):
2417                         ip_hdr = (struct iphdr *)skb->data;
2418                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2419                         break;
2420                 default:
2421                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2422                 }
2423                 break;
2424         case PACKET_BROADCAST:
2425                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2426                 break;
2427         default:
2428                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2429         }
2430         /* the source MAC address */
2431         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2432                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2433         else
2434                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2435         /* the protocol */
2436         fake_hdr->h_proto = skb->protocol;
2437 }
2438
2439 static inline void
2440 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2441                         struct qeth_hdr *hdr)
2442 {
2443         if (card->dev->type == ARPHRD_IEEE802_TR)
2444                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2445         else
2446                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2447 }
2448
2449 static inline void
2450 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2451                       struct qeth_hdr *hdr)
2452 {
2453 #ifdef CONFIG_QETH_VLAN
2454         u16 *vlan_tag;
2455
2456         if (hdr->hdr.l3.ext_flags &
2457             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2458                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2459                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2460                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2461                 *(vlan_tag + 1) = skb->protocol;
2462                 skb->protocol = __constant_htons(ETH_P_8021Q);
2463         }
2464 #endif /* CONFIG_QETH_VLAN */
2465 }
2466
2467 static inline __u16
2468 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2469                         struct qeth_hdr *hdr)
2470 {
2471         unsigned short vlan_id = 0;
2472 #ifdef CONFIG_QETH_VLAN
2473         struct vlan_hdr *vhdr;
2474 #endif
2475
2476         skb->pkt_type = PACKET_HOST;
2477         skb->protocol = qeth_type_trans(skb, skb->dev);
2478         if (card->options.checksum_type == NO_CHECKSUMMING)
2479                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2480         else
2481                 skb->ip_summed = CHECKSUM_NONE;
2482 #ifdef CONFIG_QETH_VLAN
2483         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2484                 vhdr = (struct vlan_hdr *) skb->data;
2485                 skb->protocol =
2486                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2487                 vlan_id = hdr->hdr.l2.vlan_id;
2488                 skb_pull(skb, VLAN_HLEN);
2489         }
2490 #endif
2491         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2492         return vlan_id;
2493 }
2494
2495 static inline void
2496 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2497                  struct qeth_hdr *hdr)
2498 {
2499 #ifdef CONFIG_QETH_IPV6
2500         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2501                 skb->pkt_type = PACKET_HOST;
2502                 skb->protocol = qeth_type_trans(skb, card->dev);
2503                 return;
2504         }
2505 #endif /* CONFIG_QETH_IPV6 */
2506         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2507                               ETH_P_IP);
2508         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2509         case QETH_CAST_UNICAST:
2510                 skb->pkt_type = PACKET_HOST;
2511                 break;
2512         case QETH_CAST_MULTICAST:
2513                 skb->pkt_type = PACKET_MULTICAST;
2514                 card->stats.multicast++;
2515                 break;
2516         case QETH_CAST_BROADCAST:
2517                 skb->pkt_type = PACKET_BROADCAST;
2518                 card->stats.multicast++;
2519                 break;
2520         case QETH_CAST_ANYCAST:
2521         case QETH_CAST_NOCAST:
2522         default:
2523                 skb->pkt_type = PACKET_HOST;
2524         }
2525         qeth_rebuild_skb_vlan(card, skb, hdr);
2526         if (card->options.fake_ll)
2527                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2528         else
2529                 skb->mac.raw = skb->data;
2530         skb->ip_summed = card->options.checksum_type;
2531         if (card->options.checksum_type == HW_CHECKSUMMING){
2532                 if ( (hdr->hdr.l3.ext_flags &
2533                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2534                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2535                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2536                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2537                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2538                 else
2539                         skb->ip_summed = SW_CHECKSUMMING;
2540         }
2541 }
2542
2543 static inline void
2544 qeth_process_inbound_buffer(struct qeth_card *card,
2545                             struct qeth_qdio_buffer *buf, int index)
2546 {
2547         struct qdio_buffer_element *element;
2548         struct sk_buff *skb;
2549         struct qeth_hdr *hdr;
2550         int offset;
2551         int rxrc;
2552         __u16 vlan_tag = 0;
2553
2554         /* get first element of current buffer */
2555         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2556         offset = 0;
2557 #ifdef CONFIG_QETH_PERF_STATS
2558         card->perf_stats.bufs_rec++;
2559 #endif
2560         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2561                                        &offset, &hdr))) {
2562                 skb->dev = card->dev;
2563                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2564                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2565                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2566                         qeth_rebuild_skb(card, skb, hdr);
2567                 else { /*in case of OSN*/
2568                         skb_push(skb, sizeof(struct qeth_hdr));
2569                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2570                 }
2571                 /* is device UP ? */
2572                 if (!(card->dev->flags & IFF_UP)){
2573                         dev_kfree_skb_any(skb);
2574                         continue;
2575                 }
2576 #ifdef CONFIG_QETH_VLAN
2577                 if (vlan_tag)
2578                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2579                 else
2580 #endif
2581                 if (card->info.type == QETH_CARD_TYPE_OSN)
2582                         rxrc = card->osn_info.data_cb(skb);
2583                 else
2584                         rxrc = netif_rx(skb);
2585                 card->dev->last_rx = jiffies;
2586                 card->stats.rx_packets++;
2587                 card->stats.rx_bytes += skb->len;
2588         }
2589 }
2590
2591 static inline struct qeth_buffer_pool_entry *
2592 qeth_get_buffer_pool_entry(struct qeth_card *card)
2593 {
2594         struct qeth_buffer_pool_entry *entry;
2595
2596         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2597         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2598                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2599                                 struct qeth_buffer_pool_entry, list);
2600                 list_del_init(&entry->list);
2601                 return entry;
2602         }
2603         return NULL;
2604 }
2605
2606 static inline void
2607 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2608 {
2609         struct qeth_buffer_pool_entry *pool_entry;
2610         int i;
2611
2612         pool_entry = qeth_get_buffer_pool_entry(card);
2613         /*
2614          * since the buffer is accessed only from the input_tasklet
2615          * there shouldn't be a need to synchronize; also, since we use
2616          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2617          * buffers
2618          */
2619         BUG_ON(!pool_entry);
2620
2621         buf->pool_entry = pool_entry;
2622         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2623                 buf->buffer->element[i].length = PAGE_SIZE;
2624                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2625                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2626                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2627                 else
2628                         buf->buffer->element[i].flags = 0;
2629         }
2630         buf->state = QETH_QDIO_BUF_EMPTY;
2631 }
2632
2633 static inline void
2634 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2635                          struct qeth_qdio_out_buffer *buf)
2636 {
2637         int i;
2638         struct sk_buff *skb;
2639
2640         /* is PCI flag set on buffer? */
2641         if (buf->buffer->element[0].flags & 0x40)
2642                 atomic_dec(&queue->set_pci_flags_count);
2643
2644         while ((skb = skb_dequeue(&buf->skb_list))){
2645                 atomic_dec(&skb->users);
2646                 dev_kfree_skb_any(skb);
2647         }
2648         qeth_eddp_buf_release_contexts(buf);
2649         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2650                 buf->buffer->element[i].length = 0;
2651                 buf->buffer->element[i].addr = NULL;
2652                 buf->buffer->element[i].flags = 0;
2653         }
2654         buf->next_element_to_fill = 0;
2655         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2656 }
2657
2658 static inline void
2659 qeth_queue_input_buffer(struct qeth_card *card, int index)
2660 {
2661         struct qeth_qdio_q *queue = card->qdio.in_q;
2662         int count;
2663         int i;
2664         int rc;
2665
2666         QETH_DBF_TEXT(trace,6,"queinbuf");
2667         count = (index < queue->next_buf_to_init)?
2668                 card->qdio.in_buf_pool.buf_count -
2669                 (queue->next_buf_to_init - index) :
2670                 card->qdio.in_buf_pool.buf_count -
2671                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2672         /* only requeue at a certain threshold to avoid SIGAs */
2673         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2674                 for (i = queue->next_buf_to_init;
2675                      i < queue->next_buf_to_init + count; ++i)
2676                         qeth_init_input_buffer(card,
2677                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2678                 /*
2679                  * according to old code it should be avoided to requeue all
2680                  * 128 buffers in order to benefit from PCI avoidance.
2681                  * this function keeps at least one buffer (the buffer at
2682                  * 'index') un-requeued -> this buffer is the first buffer that
2683                  * will be requeued the next time
2684                  */
2685 #ifdef CONFIG_QETH_PERF_STATS
2686                 card->perf_stats.inbound_do_qdio_cnt++;
2687                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2688 #endif
2689                 rc = do_QDIO(CARD_DDEV(card),
2690                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2691                              0, queue->next_buf_to_init, count, NULL);
2692 #ifdef CONFIG_QETH_PERF_STATS
2693                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2694                         card->perf_stats.inbound_do_qdio_start_time;
2695 #endif
2696                 if (rc){
2697                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2698                                    "return %i (device %s).\n",
2699                                    rc, CARD_DDEV_ID(card));
2700                         QETH_DBF_TEXT(trace,2,"qinberr");
2701                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2702                 }
2703                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2704                                           QDIO_MAX_BUFFERS_PER_Q;
2705         }
2706 }
2707
2708 static inline void
2709 qeth_put_buffer_pool_entry(struct qeth_card *card,
2710                            struct qeth_buffer_pool_entry *entry)
2711 {
2712         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2713         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2714 }
2715
2716 static void
2717 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2718                         unsigned int qdio_err, unsigned int siga_err,
2719                         unsigned int queue, int first_element, int count,
2720                         unsigned long card_ptr)
2721 {
2722         struct net_device *net_dev;
2723         struct qeth_card *card;
2724         struct qeth_qdio_buffer *buffer;
2725         int index;
2726         int i;
2727
2728         QETH_DBF_TEXT(trace, 6, "qdinput");
2729         card = (struct qeth_card *) card_ptr;
2730         net_dev = card->dev;
2731 #ifdef CONFIG_QETH_PERF_STATS
2732         card->perf_stats.inbound_cnt++;
2733         card->perf_stats.inbound_start_time = qeth_get_micros();
2734 #endif
2735         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2736                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2737                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2738                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2739                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2740                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2741                         qeth_schedule_recovery(card);
2742                         return;
2743                 }
2744         }
2745         for (i = first_element; i < (first_element + count); ++i) {
2746                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2747                 buffer = &card->qdio.in_q->bufs[index];
2748                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2749                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2750                         qeth_process_inbound_buffer(card, buffer, index);
2751                 /* clear buffer and give back to hardware */
2752                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2753                 qeth_queue_input_buffer(card, index);
2754         }
2755 #ifdef CONFIG_QETH_PERF_STATS
2756         card->perf_stats.inbound_time += qeth_get_micros() -
2757                 card->perf_stats.inbound_start_time;
2758 #endif
2759 }
2760
2761 static inline int
2762 qeth_handle_send_error(struct qeth_card *card,
2763                        struct qeth_qdio_out_buffer *buffer,
2764                        int qdio_err, int siga_err)
2765 {
2766         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2767         int cc = siga_err & 3;
2768
2769         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2770         switch (cc) {
2771         case 0:
2772                 if (qdio_err){
2773                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2774                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2775                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2776                                        (u16)qdio_err, (u8)sbalf15);
2777                         return QETH_SEND_ERROR_LINK_FAILURE;
2778                 }
2779                 return QETH_SEND_ERROR_NONE;
2780         case 2:
2781                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2782                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2783                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2784                         return QETH_SEND_ERROR_KICK_IT;
2785                 }
2786                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2787                         return QETH_SEND_ERROR_RETRY;
2788                 return QETH_SEND_ERROR_LINK_FAILURE;
2789                 /* look at qdio_error and sbalf 15 */
2790         case 1:
2791                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2792                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2793                 return QETH_SEND_ERROR_LINK_FAILURE;
2794         case 3:
2795                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2796                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797                 return QETH_SEND_ERROR_KICK_IT;
2798         }
2799         return QETH_SEND_ERROR_LINK_FAILURE;
2800 }
2801
2802 void
2803 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2804                    int index, int count)
2805 {
2806         struct qeth_qdio_out_buffer *buf;
2807         int rc;
2808         int i;
2809
2810         QETH_DBF_TEXT(trace, 6, "flushbuf");
2811
2812         for (i = index; i < index + count; ++i) {
2813                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2814                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2815                                 SBAL_FLAGS_LAST_ENTRY;
2816
2817                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2818                         continue;
2819
2820                 if (!queue->do_pack){
2821                         if ((atomic_read(&queue->used_buffers) >=
2822                                 (QETH_HIGH_WATERMARK_PACK -
2823                                  QETH_WATERMARK_PACK_FUZZ)) &&
2824                             !atomic_read(&queue->set_pci_flags_count)){
2825                                 /* it's likely that we'll go to packing
2826                                  * mode soon */
2827                                 atomic_inc(&queue->set_pci_flags_count);
2828                                 buf->buffer->element[0].flags |= 0x40;
2829                         }
2830                 } else {
2831                         if (!atomic_read(&queue->set_pci_flags_count)){
2832                                 /*
2833                                  * there's no outstanding PCI any more, so we
2834                                  * have to request a PCI to be sure the the PCI
2835                                  * will wake at some time in the future then we
2836                                  * can flush packed buffers that might still be
2837                                  * hanging around, which can happen if no
2838                                  * further send was requested by the stack
2839                                  */
2840                                 atomic_inc(&queue->set_pci_flags_count);
2841                                 buf->buffer->element[0].flags |= 0x40;
2842                         }
2843                 }
2844         }
2845
2846         queue->card->dev->trans_start = jiffies;
2847 #ifdef CONFIG_QETH_PERF_STATS
2848         queue->card->perf_stats.outbound_do_qdio_cnt++;
2849         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2850 #endif
2851         if (under_int)
2852                 rc = do_QDIO(CARD_DDEV(queue->card),
2853                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2854                              queue->queue_no, index, count, NULL);
2855         else
2856                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2857                              queue->queue_no, index, count, NULL);
2858 #ifdef CONFIG_QETH_PERF_STATS
2859         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2860                 queue->card->perf_stats.outbound_do_qdio_start_time;
2861 #endif
2862         if (rc){
2863                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2864                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2865                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2866                 queue->card->stats.tx_errors += count;
2867                 /* this must not happen under normal circumstances. if it
2868                  * happens something is really wrong -> recover */
2869                 qeth_schedule_recovery(queue->card);
2870                 return;
2871         }
2872         atomic_add(count, &queue->used_buffers);
2873 #ifdef CONFIG_QETH_PERF_STATS
2874         queue->card->perf_stats.bufs_sent += count;
2875 #endif
2876 }
2877
2878 /*
2879  * Switched to packing state if the number of used buffers on a queue
2880  * reaches a certain limit.
2881  */
2882 static inline void
2883 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2884 {
2885         if (!queue->do_pack) {
2886                 if (atomic_read(&queue->used_buffers)
2887                     >= QETH_HIGH_WATERMARK_PACK){
2888                         /* switch non-PACKING -> PACKING */
2889                         QETH_DBF_TEXT(trace, 6, "np->pack");
2890 #ifdef CONFIG_QETH_PERF_STATS
2891                         queue->card->perf_stats.sc_dp_p++;
2892 #endif
2893                         queue->do_pack = 1;
2894                 }
2895         }
2896 }
2897
2898 /*
2899  * Switches from packing to non-packing mode. If there is a packing
2900  * buffer on the queue this buffer will be prepared to be flushed.
2901  * In that case 1 is returned to inform the caller. If no buffer
2902  * has to be flushed, zero is returned.
2903  */
2904 static inline int
2905 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2906 {
2907         struct qeth_qdio_out_buffer *buffer;
2908         int flush_count = 0;
2909
2910         if (queue->do_pack) {
2911                 if (atomic_read(&queue->used_buffers)
2912                     <= QETH_LOW_WATERMARK_PACK) {
2913                         /* switch PACKING -> non-PACKING */
2914                         QETH_DBF_TEXT(trace, 6, "pack->np");
2915 #ifdef CONFIG_QETH_PERF_STATS
2916                         queue->card->perf_stats.sc_p_dp++;
2917 #endif
2918                         queue->do_pack = 0;
2919                         /* flush packing buffers */
2920                         buffer = &queue->bufs[queue->next_buf_to_fill];
2921                         if ((atomic_read(&buffer->state) ==
2922                                                 QETH_QDIO_BUF_EMPTY) &&
2923                             (buffer->next_element_to_fill > 0)) {
2924                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2925                                 flush_count++;
2926                                 queue->next_buf_to_fill =
2927                                         (queue->next_buf_to_fill + 1) %
2928                                         QDIO_MAX_BUFFERS_PER_Q;
2929                         }
2930                 }
2931         }
2932         return flush_count;
2933 }
2934
2935 /*
2936  * Called to flush a packing buffer if no more pci flags are on the queue.
2937  * Checks if there is a packing buffer and prepares it to be flushed.
2938  * In that case returns 1, otherwise zero.
2939  */
2940 static inline int
2941 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2942 {
2943         struct qeth_qdio_out_buffer *buffer;
2944
2945         buffer = &queue->bufs[queue->next_buf_to_fill];
2946         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2947            (buffer->next_element_to_fill > 0)){
2948                 /* it's a packing buffer */
2949                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2950                 queue->next_buf_to_fill =
2951                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2952                 return 1;
2953         }
2954         return 0;
2955 }
2956
2957 static inline void
2958 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2959 {
2960         int index;
2961         int flush_cnt = 0;
2962         int q_was_packing = 0;
2963
2964         /*
2965          * check if weed have to switch to non-packing mode or if
2966          * we have to get a pci flag out on the queue
2967          */
2968         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2969             !atomic_read(&queue->set_pci_flags_count)){
2970                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2971                                 QETH_OUT_Q_UNLOCKED) {
2972                         /*
2973                          * If we get in here, there was no action in
2974                          * do_send_packet. So, we check if there is a
2975                          * packing buffer to be flushed here.
2976                          */
2977                         netif_stop_queue(queue->card->dev);
2978                         index = queue->next_buf_to_fill;
2979                         q_was_packing = queue->do_pack;
2980                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2981                         if (!flush_cnt &&
2982                             !atomic_read(&queue->set_pci_flags_count))
2983                                 flush_cnt +=
2984                                         qeth_flush_buffers_on_no_pci(queue);
2985 #ifdef CONFIG_QETH_PERF_STATS
2986                         if (q_was_packing)
2987                                 queue->card->perf_stats.bufs_sent_pack +=
2988                                         flush_cnt;
2989 #endif
2990                         if (flush_cnt)
2991                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2992                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2993                 }
2994         }
2995 }
2996
2997 static void
2998 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2999                         unsigned int qdio_error, unsigned int siga_error,
3000                         unsigned int __queue, int first_element, int count,
3001                         unsigned long card_ptr)
3002 {
3003         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3004         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3005         struct qeth_qdio_out_buffer *buffer;
3006         int i;
3007
3008         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3009         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3010                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3011                         QETH_DBF_TEXT(trace, 2, "achkcond");
3012                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3013                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3014                         netif_stop_queue(card->dev);
3015                         qeth_schedule_recovery(card);
3016                         return;
3017                 }
3018         }
3019 #ifdef CONFIG_QETH_PERF_STATS
3020         card->perf_stats.outbound_handler_cnt++;
3021         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3022 #endif
3023         for(i = first_element; i < (first_element + count); ++i){
3024                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3025                 /*we only handle the KICK_IT error by doing a recovery */
3026                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
3027                                 == QETH_SEND_ERROR_KICK_IT){
3028                         netif_stop_queue(card->dev);
3029                         qeth_schedule_recovery(card);
3030                         return;
3031                 }
3032                 qeth_clear_output_buffer(queue, buffer);
3033         }
3034         atomic_sub(count, &queue->used_buffers);
3035         /* check if we need to do something on this outbound queue */
3036         if (card->info.type != QETH_CARD_TYPE_IQD)
3037                 qeth_check_outbound_queue(queue);
3038
3039         netif_wake_queue(queue->card->dev);
3040 #ifdef CONFIG_QETH_PERF_STATS
3041         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3042                 card->perf_stats.outbound_handler_start_time;
3043 #endif
3044 }
3045
3046 static void
3047 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3048 {
3049
3050         param_field[0] = _ascebc['P'];
3051         param_field[1] = _ascebc['C'];
3052         param_field[2] = _ascebc['I'];
3053         param_field[3] = _ascebc['T'];
3054         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3055         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3056         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3057 }
3058
3059 static void
3060 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3061 {
3062         param_field[16] = _ascebc['B'];
3063         param_field[17] = _ascebc['L'];
3064         param_field[18] = _ascebc['K'];
3065         param_field[19] = _ascebc['T'];
3066         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3067         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3068         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3069 }
3070
3071 static void
3072 qeth_initialize_working_pool_list(struct qeth_card *card)
3073 {
3074         struct qeth_buffer_pool_entry *entry;
3075
3076         QETH_DBF_TEXT(trace,5,"inwrklst");
3077
3078         list_for_each_entry(entry,
3079                             &card->qdio.init_pool.entry_list, init_list) {
3080                 qeth_put_buffer_pool_entry(card,entry);
3081         }
3082 }
3083
3084 static void
3085 qeth_clear_working_pool_list(struct qeth_card *card)
3086 {
3087         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3088
3089         QETH_DBF_TEXT(trace,5,"clwrklst");
3090         list_for_each_entry_safe(pool_entry, tmp,
3091                             &card->qdio.in_buf_pool.entry_list, list){
3092                         list_del(&pool_entry->list);
3093         }
3094 }
3095
3096 static void
3097 qeth_free_buffer_pool(struct qeth_card *card)
3098 {
3099         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3100         int i=0;
3101         QETH_DBF_TEXT(trace,5,"freepool");
3102         list_for_each_entry_safe(pool_entry, tmp,
3103                                  &card->qdio.init_pool.entry_list, init_list){
3104                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3105                         free_page((unsigned long)pool_entry->elements[i]);
3106                 list_del(&pool_entry->init_list);
3107                 kfree(pool_entry);
3108         }
3109 }
3110
3111 static int
3112 qeth_alloc_buffer_pool(struct qeth_card *card)
3113 {
3114         struct qeth_buffer_pool_entry *pool_entry;
3115         void *ptr;
3116         int i, j;
3117
3118         QETH_DBF_TEXT(trace,5,"alocpool");
3119         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3120                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3121                 if (!pool_entry){
3122                         qeth_free_buffer_pool(card);
3123                         return -ENOMEM;
3124                 }
3125                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3126                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3127                         if (!ptr) {
3128                                 while (j > 0)
3129                                         free_page((unsigned long)
3130                                                   pool_entry->elements[--j]);
3131                                 kfree(pool_entry);
3132                                 qeth_free_buffer_pool(card);
3133                                 return -ENOMEM;
3134                         }
3135                         pool_entry->elements[j] = ptr;
3136                 }
3137                 list_add(&pool_entry->init_list,
3138                          &card->qdio.init_pool.entry_list);
3139         }
3140         return 0;
3141 }
3142
3143 int
3144 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3145 {
3146         QETH_DBF_TEXT(trace, 2, "realcbp");
3147
3148         if ((card->state != CARD_STATE_DOWN) &&
3149             (card->state != CARD_STATE_RECOVER))
3150                 return -EPERM;
3151
3152         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3153         qeth_clear_working_pool_list(card);
3154         qeth_free_buffer_pool(card);
3155         card->qdio.in_buf_pool.buf_count = bufcnt;
3156         card->qdio.init_pool.buf_count = bufcnt;
3157         return qeth_alloc_buffer_pool(card);
3158 }
3159
3160 static int
3161 qeth_alloc_qdio_buffers(struct qeth_card *card)
3162 {
3163         int i, j;
3164
3165         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3166
3167         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3168                 return 0;
3169
3170         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3171                                   GFP_KERNEL|GFP_DMA);
3172         if (!card->qdio.in_q)
3173                 return - ENOMEM;
3174         QETH_DBF_TEXT(setup, 2, "inq");
3175         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3176         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3177         /* give inbound qeth_qdio_buffers their qdio_buffers */
3178         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3179                 card->qdio.in_q->bufs[i].buffer =
3180                         &card->qdio.in_q->qdio_bufs[i];
3181         /* inbound buffer pool */
3182         if (qeth_alloc_buffer_pool(card)){
3183                 kfree(card->qdio.in_q);
3184                 return -ENOMEM;
3185         }
3186         /* outbound */
3187         card->qdio.out_qs =
3188                 kmalloc(card->qdio.no_out_queues *
3189                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3190         if (!card->qdio.out_qs){
3191                 qeth_free_buffer_pool(card);
3192                 return -ENOMEM;
3193         }
3194         for (i = 0; i < card->qdio.no_out_queues; ++i){
3195                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3196                                                GFP_KERNEL|GFP_DMA);
3197                 if (!card->qdio.out_qs[i]){
3198                         while (i > 0)
3199                                 kfree(card->qdio.out_qs[--i]);
3200                         kfree(card->qdio.out_qs);
3201                         return -ENOMEM;
3202                 }
3203                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3204                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3205                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3206                 card->qdio.out_qs[i]->queue_no = i;
3207                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3208                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3209                         card->qdio.out_qs[i]->bufs[j].buffer =
3210                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3211                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3212                                             skb_list);
3213                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3214                 }
3215         }
3216         card->qdio.state = QETH_QDIO_ALLOCATED;
3217         return 0;
3218 }
3219
3220 static void
3221 qeth_free_qdio_buffers(struct qeth_card *card)
3222 {
3223         int i, j;
3224
3225         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3226         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3227                 return;
3228         kfree(card->qdio.in_q);
3229         /* inbound buffer pool */
3230         qeth_free_buffer_pool(card);
3231         /* free outbound qdio_qs */
3232         for (i = 0; i < card->qdio.no_out_queues; ++i){
3233                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3234                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3235                                         &card->qdio.out_qs[i]->bufs[j]);
3236                 kfree(card->qdio.out_qs[i]);
3237         }
3238         kfree(card->qdio.out_qs);
3239         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3240 }
3241
3242 static void
3243 qeth_clear_qdio_buffers(struct qeth_card *card)
3244 {
3245         int i, j;
3246
3247         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3248         /* clear outbound buffers to free skbs */
3249         for (i = 0; i < card->qdio.no_out_queues; ++i)
3250                 if (card->qdio.out_qs[i]){
3251                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3252                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3253                                                 &card->qdio.out_qs[i]->bufs[j]);
3254                 }
3255 }
3256
3257 static void
3258 qeth_init_qdio_info(struct qeth_card *card)
3259 {
3260         QETH_DBF_TEXT(setup, 4, "intqdinf");
3261         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3262         /* inbound */
3263         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3264         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3265         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3266         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3267         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3268         /* outbound */
3269 }
3270
3271 static int
3272 qeth_init_qdio_queues(struct qeth_card *card)
3273 {
3274         int i, j;
3275         int rc;
3276
3277         QETH_DBF_TEXT(setup, 2, "initqdqs");
3278
3279         /* inbound queue */
3280         memset(card->qdio.in_q->qdio_bufs, 0,
3281                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3282         qeth_initialize_working_pool_list(card);
3283         /*give only as many buffers to hardware as we have buffer pool entries*/
3284         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3285                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3286         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3287         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3288                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3289         if (rc) {
3290                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3291                 return rc;
3292         }
3293         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3294         if (rc) {
3295                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3296                 return rc;
3297         }
3298         /* outbound queue */
3299         for (i = 0; i < card->qdio.no_out_queues; ++i){
3300                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3301                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3302                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3303                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3304                                         &card->qdio.out_qs[i]->bufs[j]);
3305                 }
3306                 card->qdio.out_qs[i]->card = card;
3307                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3308                 card->qdio.out_qs[i]->do_pack = 0;
3309                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3310                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3311                 atomic_set(&card->qdio.out_qs[i]->state,
3312                            QETH_OUT_Q_UNLOCKED);
3313         }
3314         return 0;
3315 }
3316
3317 static int
3318 qeth_qdio_establish(struct qeth_card *card)
3319 {
3320         struct qdio_initialize init_data;
3321         char *qib_param_field;
3322         struct qdio_buffer **in_sbal_ptrs;
3323         struct qdio_buffer **out_sbal_ptrs;
3324         int i, j, k;
3325         int rc;
3326
3327         QETH_DBF_TEXT(setup, 2, "qdioest");
3328
3329         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3330                               GFP_KERNEL);
3331         if (!qib_param_field)
3332                 return -ENOMEM;
3333
3334         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3335
3336         qeth_create_qib_param_field(card, qib_param_field);
3337         qeth_create_qib_param_field_blkt(card, qib_param_field);
3338
3339         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3340                                GFP_KERNEL);
3341         if (!in_sbal_ptrs) {
3342                 kfree(qib_param_field);
3343                 return -ENOMEM;
3344         }
3345         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3346                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3347                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3348
3349         out_sbal_ptrs =
3350                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3351                         sizeof(void *), GFP_KERNEL);
3352         if (!out_sbal_ptrs) {
3353                 kfree(in_sbal_ptrs);
3354                 kfree(qib_param_field);
3355                 return -ENOMEM;
3356         }
3357         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3358                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3359                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3360                                 virt_to_phys(card->qdio.out_qs[i]->
3361                                              bufs[j].buffer);
3362                 }
3363
3364         memset(&init_data, 0, sizeof(struct qdio_initialize));
3365         init_data.cdev                   = CARD_DDEV(card);
3366         init_data.q_format               = qeth_get_qdio_q_format(card);
3367         init_data.qib_param_field_format = 0;
3368         init_data.qib_param_field        = qib_param_field;
3369         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3370         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3371         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3372         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3373         init_data.no_input_qs            = 1;
3374         init_data.no_output_qs           = card->qdio.no_out_queues;
3375         init_data.input_handler          = (qdio_handler_t *)
3376                                            qeth_qdio_input_handler;
3377         init_data.output_handler         = (qdio_handler_t *)
3378                                            qeth_qdio_output_handler;
3379         init_data.int_parm               = (unsigned long) card;
3380         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3381                                            QDIO_OUTBOUND_0COPY_SBALS |
3382                                            QDIO_USE_OUTBOUND_PCIS;
3383         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3384         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3385
3386         if (!(rc = qdio_initialize(&init_data)))
3387                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3388
3389         kfree(out_sbal_ptrs);
3390         kfree(in_sbal_ptrs);
3391         kfree(qib_param_field);
3392         return rc;
3393 }
3394
3395 static int
3396 qeth_qdio_activate(struct qeth_card *card)
3397 {
3398         QETH_DBF_TEXT(setup,3,"qdioact");
3399         return qdio_activate(CARD_DDEV(card), 0);
3400 }
3401
3402 static int
3403 qeth_clear_channel(struct qeth_channel *channel)
3404 {
3405         unsigned long flags;
3406         struct qeth_card *card;
3407         int rc;
3408
3409         QETH_DBF_TEXT(trace,3,"clearch");
3410         card = CARD_FROM_CDEV(channel->ccwdev);
3411         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3412         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3413         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3414
3415         if (rc)
3416                 return rc;
3417         rc = wait_event_interruptible_timeout(card->wait_q,
3418                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3419         if (rc == -ERESTARTSYS)
3420                 return rc;
3421         if (channel->state != CH_STATE_STOPPED)
3422                 return -ETIME;
3423         channel->state = CH_STATE_DOWN;
3424         return 0;
3425 }
3426
3427 static int
3428 qeth_halt_channel(struct qeth_channel *channel)
3429 {
3430         unsigned long flags;
3431         struct qeth_card *card;
3432         int rc;
3433
3434         QETH_DBF_TEXT(trace,3,"haltch");
3435         card = CARD_FROM_CDEV(channel->ccwdev);
3436         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3437         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3438         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3439
3440         if (rc)
3441                 return rc;
3442         rc = wait_event_interruptible_timeout(card->wait_q,
3443                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3444         if (rc == -ERESTARTSYS)
3445                 return rc;
3446         if (channel->state != CH_STATE_HALTED)
3447                 return -ETIME;
3448         return 0;
3449 }
3450
3451 static int
3452 qeth_halt_channels(struct qeth_card *card)
3453 {
3454         int rc1 = 0, rc2=0, rc3 = 0;
3455
3456         QETH_DBF_TEXT(trace,3,"haltchs");
3457         rc1 = qeth_halt_channel(&card->read);
3458         rc2 = qeth_halt_channel(&card->write);
3459         rc3 = qeth_halt_channel(&card->data);
3460         if (rc1)
3461                 return rc1;
3462         if (rc2)
3463                 return rc2;
3464         return rc3;
3465 }
3466 static int
3467 qeth_clear_channels(struct qeth_card *card)
3468 {
3469         int rc1 = 0, rc2=0, rc3 = 0;
3470
3471         QETH_DBF_TEXT(trace,3,"clearchs");
3472         rc1 = qeth_clear_channel(&card->read);
3473         rc2 = qeth_clear_channel(&card->write);
3474         rc3 = qeth_clear_channel(&card->data);
3475         if (rc1)
3476                 return rc1;
3477         if (rc2)
3478                 return rc2;
3479         return rc3;
3480 }
3481
3482 static int
3483 qeth_clear_halt_card(struct qeth_card *card, int halt)
3484 {
3485         int rc = 0;
3486
3487         QETH_DBF_TEXT(trace,3,"clhacrd");
3488         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3489
3490         if (halt)
3491                 rc = qeth_halt_channels(card);
3492         if (rc)
3493                 return rc;
3494         return qeth_clear_channels(card);
3495 }
3496
3497 static int
3498 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3499 {
3500         int rc = 0;
3501
3502         QETH_DBF_TEXT(trace,3,"qdioclr");
3503         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3504                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3505                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3506                              QDIO_FLAG_CLEANUP_USING_HALT :
3507                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3508                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3509                 card->qdio.state = QETH_QDIO_ALLOCATED;
3510         }
3511         if ((rc = qeth_clear_halt_card(card, use_halt)))
3512                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3513         card->state = CARD_STATE_DOWN;
3514         return rc;
3515 }
3516
3517 static int
3518 qeth_dm_act(struct qeth_card *card)
3519 {
3520         int rc;
3521         struct qeth_cmd_buffer *iob;
3522
3523         QETH_DBF_TEXT(setup,2,"dmact");
3524
3525         iob = qeth_wait_for_buffer(&card->write);
3526         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3527
3528         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3529                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3530         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3531                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3532         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3533         return rc;
3534 }
3535
3536 static int
3537 qeth_mpc_initialize(struct qeth_card *card)
3538 {
3539         int rc;
3540
3541         QETH_DBF_TEXT(setup,2,"mpcinit");
3542
3543         if ((rc = qeth_issue_next_read(card))){
3544                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3545                 return rc;
3546         }
3547         if ((rc = qeth_cm_enable(card))){
3548                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3549                 goto out_qdio;
3550         }
3551         if ((rc = qeth_cm_setup(card))){
3552                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3553                 goto out_qdio;
3554         }
3555         if ((rc = qeth_ulp_enable(card))){
3556                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3557                 goto out_qdio;
3558         }
3559         if ((rc = qeth_ulp_setup(card))){
3560                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3561                 goto out_qdio;
3562         }
3563         if ((rc = qeth_alloc_qdio_buffers(card))){
3564                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3565                 goto out_qdio;
3566         }
3567         if ((rc = qeth_qdio_establish(card))){
3568                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3569                 qeth_free_qdio_buffers(card);
3570                 goto out_qdio;
3571         }
3572         if ((rc = qeth_qdio_activate(card))){
3573                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3574                 goto out_qdio;
3575         }
3576         if ((rc = qeth_dm_act(card))){
3577                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3578                 goto out_qdio;
3579         }
3580
3581         return 0;
3582 out_qdio:
3583         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3584         return rc;
3585 }
3586
3587 static struct net_device *
3588 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3589 {
3590         struct net_device *dev = NULL;
3591
3592         switch (type) {
3593         case QETH_CARD_TYPE_OSAE:
3594                 switch (linktype) {
3595                 case QETH_LINK_TYPE_LANE_TR:
3596                 case QETH_LINK_TYPE_HSTR:
3597 #ifdef CONFIG_TR
3598                         dev = alloc_trdev(0);
3599 #endif /* CONFIG_TR */
3600                         break;
3601                 default:
3602                         dev = alloc_etherdev(0);
3603                 }
3604                 break;
3605         case QETH_CARD_TYPE_IQD:
3606                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3607                 break;
3608         case QETH_CARD_TYPE_OSN:
3609                 dev = alloc_netdev(0, "osn%d", ether_setup);
3610                 break;
3611         default:
3612                 dev = alloc_etherdev(0);
3613         }
3614         return dev;
3615 }
3616
3617 /*hard_header fake function; used in case fake_ll is set */
3618 static int
3619 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3620                      unsigned short type, void *daddr, void *saddr,
3621                      unsigned len)
3622 {
3623         if(dev->type == ARPHRD_IEEE802_TR){
3624                 struct trh_hdr *hdr;
3625                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3626                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3627                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3628                 return QETH_FAKE_LL_LEN_TR;
3629
3630         } else {
3631                 struct ethhdr *hdr;
3632                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3633                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3634                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3635                 if (type != ETH_P_802_3)
3636                         hdr->h_proto = htons(type);
3637                 else
3638                         hdr->h_proto = htons(len);
3639                 return QETH_FAKE_LL_LEN_ETH;
3640
3641         }
3642 }
3643
3644 static inline int
3645 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3646
3647 static int
3648 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3649 {
3650         int rc;
3651         struct qeth_card *card;
3652
3653         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3654         card = (struct qeth_card *)dev->priv;
3655         if (skb==NULL) {
3656                 card->stats.tx_dropped++;
3657                 card->stats.tx_errors++;
3658                 /* return OK; otherwise ksoftirqd goes to 100% */
3659                 return NETDEV_TX_OK;
3660         }
3661         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3662                 card->stats.tx_dropped++;
3663                 card->stats.tx_errors++;
3664                 card->stats.tx_carrier_errors++;
3665                 dev_kfree_skb_any(skb);
3666                 /* return OK; otherwise ksoftirqd goes to 100% */
3667                 return NETDEV_TX_OK;
3668         }
3669 #ifdef CONFIG_QETH_PERF_STATS
3670         card->perf_stats.outbound_cnt++;
3671         card->perf_stats.outbound_start_time = qeth_get_micros();
3672 #endif
3673         netif_stop_queue(dev);
3674         if ((rc = qeth_send_packet(card, skb))) {
3675                 if (rc == -EBUSY) {
3676                         return NETDEV_TX_BUSY;
3677                 } else {
3678                         card->stats.tx_errors++;
3679                         card->stats.tx_dropped++;
3680                         dev_kfree_skb_any(skb);
3681                         /*set to OK; otherwise ksoftirqd goes to 100% */
3682                         rc = NETDEV_TX_OK;
3683                 }
3684         }
3685         netif_wake_queue(dev);
3686 #ifdef CONFIG_QETH_PERF_STATS
3687         card->perf_stats.outbound_time += qeth_get_micros() -
3688                 card->perf_stats.outbound_start_time;
3689 #endif
3690         return rc;
3691 }
3692
3693 static int
3694 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3695 {
3696         int rc = 0;
3697 #ifdef CONFIG_QETH_VLAN
3698         struct vlan_group *vg;
3699         int i;
3700
3701         if (!(vg = card->vlangrp))
3702                 return rc;
3703
3704         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3705                 if (vg->vlan_devices[i] == dev){
3706                         rc = QETH_VLAN_CARD;
3707                         break;
3708                 }
3709         }
3710 #endif
3711         return rc;
3712 }
3713
3714 static int
3715 qeth_verify_dev(struct net_device *dev)
3716 {
3717         struct qeth_card *card;
3718         unsigned long flags;
3719         int rc = 0;
3720
3721         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3722         list_for_each_entry(card, &qeth_card_list.list, list){
3723                 if (card->dev == dev){
3724                         rc = QETH_REAL_CARD;
3725                         break;
3726                 }
3727                 rc = qeth_verify_vlan_dev(dev, card);
3728                 if (rc)
3729                         break;
3730         }
3731         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3732
3733         return rc;
3734 }
3735
3736 static struct qeth_card *
3737 qeth_get_card_from_dev(struct net_device *dev)
3738 {
3739         struct qeth_card *card = NULL;
3740         int rc;
3741
3742         rc = qeth_verify_dev(dev);
3743         if (rc == QETH_REAL_CARD)
3744                 card = (struct qeth_card *)dev->priv;
3745         else if (rc == QETH_VLAN_CARD)
3746                 card = (struct qeth_card *)
3747                         VLAN_DEV_INFO(dev)->real_dev->priv;
3748
3749         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3750         return card ;
3751 }
3752
3753 static void
3754 qeth_tx_timeout(struct net_device *dev)
3755 {
3756         struct qeth_card *card;
3757
3758         card = (struct qeth_card *) dev->priv;
3759         card->stats.tx_errors++;
3760         qeth_schedule_recovery(card);
3761 }
3762
3763 static int
3764 qeth_open(struct net_device *dev)
3765 {
3766         struct qeth_card *card;
3767
3768         QETH_DBF_TEXT(trace, 4, "qethopen");
3769
3770         card = (struct qeth_card *) dev->priv;
3771
3772         if (card->state != CARD_STATE_SOFTSETUP)
3773                 return -ENODEV;
3774
3775         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3776              (card->options.layer2) &&
3777              (!card->info.layer2_mac_registered)) {
3778                 QETH_DBF_TEXT(trace,4,"nomacadr");
3779                 return -EPERM;
3780         }
3781         card->dev->flags |= IFF_UP;
3782         netif_start_queue(dev);
3783         card->data.state = CH_STATE_UP;
3784         card->state = CARD_STATE_UP;
3785
3786         if (!card->lan_online){
3787                 if (netif_carrier_ok(dev))
3788                         netif_carrier_off(dev);
3789         }
3790         return 0;
3791 }
3792
3793 static int
3794 qeth_stop(struct net_device *dev)
3795 {
3796         struct qeth_card *card;
3797
3798         QETH_DBF_TEXT(trace, 4, "qethstop");
3799
3800         card = (struct qeth_card *) dev->priv;
3801
3802         netif_stop_queue(dev);
3803         card->dev->flags &= ~IFF_UP;
3804         if (card->state == CARD_STATE_UP)
3805                 card->state = CARD_STATE_SOFTSETUP;
3806         return 0;
3807 }
3808
3809 static inline int
3810 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3811 {
3812         int cast_type = RTN_UNSPEC;
3813
3814         if (card->info.type == QETH_CARD_TYPE_OSN)
3815                 return cast_type;
3816
3817         if (skb->dst && skb->dst->neighbour){
3818                 cast_type = skb->dst->neighbour->type;
3819                 if ((cast_type == RTN_BROADCAST) ||
3820                     (cast_type == RTN_MULTICAST) ||
3821                     (cast_type == RTN_ANYCAST))
3822                         return cast_type;
3823                 else
3824                         return RTN_UNSPEC;
3825         }
3826         /* try something else */
3827         if (skb->protocol == ETH_P_IPV6)
3828                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3829         else if (skb->protocol == ETH_P_IP)
3830                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3831         /* ... */
3832         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3833                 return RTN_BROADCAST;
3834         else {
3835                 u16 hdr_mac;
3836
3837                 hdr_mac = *((u16 *)skb->data);
3838                 /* tr multicast? */
3839                 switch (card->info.link_type) {
3840                 case QETH_LINK_TYPE_HSTR:
3841                 case QETH_LINK_TYPE_LANE_TR:
3842                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3843                             (hdr_mac == QETH_TR_MAC_C))
3844                                 return RTN_MULTICAST;
3845                 /* eth or so multicast? */
3846                 default:
3847                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3848                             (hdr_mac == QETH_ETH_MAC_V6))
3849                                 return RTN_MULTICAST;
3850                 }
3851         }
3852         return cast_type;
3853 }
3854
3855 static inline int
3856 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3857                         int ipv, int cast_type)
3858 {
3859         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3860                 return card->qdio.default_out_queue;
3861         switch (card->qdio.no_out_queues) {
3862         case 4:
3863                 if (cast_type && card->info.is_multicast_different)
3864                         return card->info.is_multicast_different &
3865                                 (card->qdio.no_out_queues - 1);
3866                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3867                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3868                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3869                                         return 3;
3870                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3871                                         return 2;
3872                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3873                                         return 1;
3874                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3875                                         return 0;
3876                         }
3877                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3878                                 return 3 - (skb->nh.iph->tos >> 6);
3879                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3880                         /* TODO: IPv6!!! */
3881                 }
3882                 return card->qdio.default_out_queue;
3883         case 1: /* fallthrough for single-out-queue 1920-device */
3884         default:
3885                 return card->qdio.default_out_queue;
3886         }
3887 }
3888
3889 static inline int
3890 qeth_get_ip_version(struct sk_buff *skb)
3891 {
3892         switch (skb->protocol) {
3893         case ETH_P_IPV6:
3894                 return 6;
3895         case ETH_P_IP:
3896                 return 4;
3897         default:
3898                 return 0;
3899         }
3900 }
3901
3902 static inline int
3903 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3904                  struct qeth_hdr **hdr, int ipv)
3905 {
3906         int rc = 0;
3907 #ifdef CONFIG_QETH_VLAN
3908         u16 *tag;
3909 #endif
3910
3911         QETH_DBF_TEXT(trace, 6, "prepskb");
3912         if (card->info.type == QETH_CARD_TYPE_OSN) {
3913                 *hdr = (struct qeth_hdr *)(*skb)->data;
3914                 return rc;
3915         }
3916         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3917         if (rc)
3918                 return rc;
3919 #ifdef CONFIG_QETH_VLAN
3920         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3921             ((ipv == 6) || card->options.layer2) ) {
3922                 /*
3923                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3924                  * to the beginning of the new header.  We are using three
3925                  * memcpys instead of one memmove to save cycles.
3926                  */
3927                 skb_push(*skb, VLAN_HLEN);
3928                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3929                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3930                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3931                 tag = (u16 *)((*skb)->data + 12);
3932                 /*
3933                  * first two bytes  = ETH_P_8021Q (0x8100)
3934                  * second two bytes = VLANID
3935                  */
3936                 *tag = __constant_htons(ETH_P_8021Q);
3937                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3938         }
3939 #endif
3940         *hdr = (struct qeth_hdr *)
3941                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3942         if (hdr == NULL)
3943                 return -EINVAL;
3944         return 0;
3945 }
3946
3947 static inline u8
3948 qeth_get_qeth_hdr_flags4(int cast_type)
3949 {
3950         if (cast_type == RTN_MULTICAST)
3951                 return QETH_CAST_MULTICAST;
3952         if (cast_type == RTN_BROADCAST)
3953                 return QETH_CAST_BROADCAST;
3954         return QETH_CAST_UNICAST;
3955 }
3956
3957 static inline u8
3958 qeth_get_qeth_hdr_flags6(int cast_type)
3959 {
3960         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3961         if (cast_type == RTN_MULTICAST)
3962                 return ct | QETH_CAST_MULTICAST;
3963         if (cast_type == RTN_ANYCAST)
3964                 return ct | QETH_CAST_ANYCAST;
3965         if (cast_type == RTN_BROADCAST)
3966                 return ct | QETH_CAST_BROADCAST;
3967         return ct | QETH_CAST_UNICAST;
3968 }
3969
3970 static inline void
3971 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3972                             struct sk_buff *skb)
3973 {
3974         __u16 hdr_mac;
3975
3976         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3977                     skb->dev->broadcast,6)) { /* broadcast? */
3978                 *(__u32 *)hdr->hdr.l2.flags |=
3979                          QETH_LAYER2_FLAG_BROADCAST << 8;
3980                 return;
3981         }
3982         hdr_mac=*((__u16*)skb->data);
3983         /* tr multicast? */
3984         switch (card->info.link_type) {
3985         case QETH_LINK_TYPE_HSTR:
3986         case QETH_LINK_TYPE_LANE_TR:
3987                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3988                     (hdr_mac == QETH_TR_MAC_C) )
3989                         *(__u32 *)hdr->hdr.l2.flags |=
3990                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3991                 else
3992                         *(__u32 *)hdr->hdr.l2.flags |=
3993                                 QETH_LAYER2_FLAG_UNICAST << 8;
3994                 break;
3995                 /* eth or so multicast? */
3996         default:
3997                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3998                      (hdr_mac==QETH_ETH_MAC_V6) )
3999                         *(__u32 *)hdr->hdr.l2.flags |=
4000                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4001                 else
4002                         *(__u32 *)hdr->hdr.l2.flags |=
4003                                 QETH_LAYER2_FLAG_UNICAST << 8;
4004         }
4005 }
4006
4007 static inline void
4008 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4009                         struct sk_buff *skb, int cast_type)
4010 {
4011         memset(hdr, 0, sizeof(struct qeth_hdr));
4012         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4013
4014         /* set byte 0 to "0x02" and byte 3 to casting flags */
4015         if (cast_type==RTN_MULTICAST)
4016                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4017         else if (cast_type==RTN_BROADCAST)
4018                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4019          else
4020                 qeth_layer2_get_packet_type(card, hdr, skb);
4021
4022         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4023 #ifdef CONFIG_QETH_VLAN
4024         /* VSWITCH relies on the VLAN
4025          * information to be present in
4026          * the QDIO header */
4027         if ((card->vlangrp != NULL) &&
4028             vlan_tx_tag_present(skb)) {
4029                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4030                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4031         }
4032 #endif
4033 }
4034
4035 void
4036 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4037                 struct sk_buff *skb, int ipv, int cast_type)
4038 {
4039         QETH_DBF_TEXT(trace, 6, "fillhdr");
4040
4041         memset(hdr, 0, sizeof(struct qeth_hdr));
4042         if (card->options.layer2) {
4043                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4044                 return;
4045         }
4046         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4047         hdr->hdr.l3.ext_flags = 0;
4048 #ifdef CONFIG_QETH_VLAN
4049         /*
4050          * before we're going to overwrite this location with next hop ip.
4051          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4052          */
4053         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4054                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4055                         QETH_HDR_EXT_VLAN_FRAME :
4056                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4057                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4058         }
4059 #endif /* CONFIG_QETH_VLAN */
4060         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4061         if (ipv == 4) {  /* IPv4 */
4062                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4063                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4064                 if ((skb->dst) && (skb->dst->neighbour)) {
4065                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4066                             *((u32 *) skb->dst->neighbour->primary_key);
4067                 } else {
4068                         /* fill in destination address used in ip header */
4069                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4070                 }
4071         } else if (ipv == 6) { /* IPv6 or passthru */
4072                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4073                 if ((skb->dst) && (skb->dst->neighbour)) {
4074                         memcpy(hdr->hdr.l3.dest_addr,
4075                                skb->dst->neighbour->primary_key, 16);
4076                 } else {
4077                         /* fill in destination address used in ip header */
4078                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4079                 }
4080         } else { /* passthrough */
4081                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4082                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4083                     sizeof(__u16), skb->dev->broadcast, 6)) {
4084                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4085                                                 QETH_HDR_PASSTHRU;
4086                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4087                             skb->dev->broadcast, 6)) {   /* broadcast? */
4088                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4089                                                 QETH_HDR_PASSTHRU;
4090                 } else {
4091                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4092                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4093                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4094                 }
4095         }
4096 }
4097
4098 static inline void
4099 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4100                    int is_tso, int *next_element_to_fill)
4101 {
4102         int length = skb->len;
4103         int length_here;
4104         int element;
4105         char *data;
4106         int first_lap ;
4107
4108         element = *next_element_to_fill;
4109         data = skb->data;
4110         first_lap = (is_tso == 0 ? 1 : 0);
4111
4112         while (length > 0) {
4113                 /* length_here is the remaining amount of data in this page */
4114                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4115                 if (length < length_here)
4116                         length_here = length;
4117
4118                 buffer->element[element].addr = data;
4119                 buffer->element[element].length = length_here;
4120                 length -= length_here;
4121                 if (!length) {
4122                         if (first_lap)
4123                                 buffer->element[element].flags = 0;
4124                         else
4125                                 buffer->element[element].flags =
4126                                     SBAL_FLAGS_LAST_FRAG;
4127                 } else {
4128                         if (first_lap)
4129                                 buffer->element[element].flags =
4130                                     SBAL_FLAGS_FIRST_FRAG;
4131                         else
4132                                 buffer->element[element].flags =
4133                                     SBAL_FLAGS_MIDDLE_FRAG;
4134                 }
4135                 data += length_here;
4136                 element++;
4137                 first_lap = 0;
4138         }
4139         *next_element_to_fill = element;
4140 }
4141
4142 static inline int
4143 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4144                  struct qeth_qdio_out_buffer *buf,
4145                  struct sk_buff *skb)
4146 {
4147         struct qdio_buffer *buffer;
4148         struct qeth_hdr_tso *hdr;
4149         int flush_cnt = 0, hdr_len, large_send = 0;
4150
4151         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4152
4153         buffer = buf->buffer;
4154         atomic_inc(&skb->users);
4155         skb_queue_tail(&buf->skb_list, skb);
4156
4157         hdr  = (struct qeth_hdr_tso *) skb->data;
4158         /*check first on TSO ....*/
4159         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4160                 int element = buf->next_element_to_fill;
4161
4162                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4163                 /*fill first buffer entry only with header information */
4164                 buffer->element[element].addr = skb->data;
4165                 buffer->element[element].length = hdr_len;
4166                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4167                 buf->next_element_to_fill++;
4168                 skb->data += hdr_len;
4169                 skb->len  -= hdr_len;
4170                 large_send = 1;
4171         }
4172         if (skb_shinfo(skb)->nr_frags == 0)
4173                 __qeth_fill_buffer(skb, buffer, large_send,
4174                                    (int *)&buf->next_element_to_fill);
4175         else
4176                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4177                                         (int *)&buf->next_element_to_fill);
4178
4179         if (!queue->do_pack) {
4180                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4181                 /* set state to PRIMED -> will be flushed */
4182                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4183                 flush_cnt = 1;
4184         } else {
4185                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4186 #ifdef CONFIG_QETH_PERF_STATS
4187                 queue->card->perf_stats.skbs_sent_pack++;
4188 #endif
4189                 if (buf->next_element_to_fill >=
4190                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4191                         /*
4192                          * packed buffer if full -> set state PRIMED
4193                          * -> will be flushed
4194                          */
4195                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4196                         flush_cnt = 1;
4197                 }
4198         }
4199         return flush_cnt;
4200 }
4201
4202 static inline int
4203 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4204                          struct sk_buff *skb, struct qeth_hdr *hdr,
4205                          int elements_needed,
4206                          struct qeth_eddp_context *ctx)
4207 {
4208         struct qeth_qdio_out_buffer *buffer;
4209         int buffers_needed = 0;
4210         int flush_cnt = 0;
4211         int index;
4212
4213         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4214
4215         /* spin until we get the queue ... */
4216         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4217                                        QETH_OUT_Q_LOCKED,
4218                                        &queue->state));
4219         /* ... now we've got the queue */
4220         index = queue->next_buf_to_fill;
4221         buffer = &queue->bufs[queue->next_buf_to_fill];
4222         /*
4223          * check if buffer is empty to make sure that we do not 'overtake'
4224          * ourselves and try to fill a buffer that is already primed
4225          */
4226         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4227                 card->stats.tx_dropped++;
4228                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4229                 return -EBUSY;
4230         }
4231         if (ctx == NULL)
4232                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4233                                           QDIO_MAX_BUFFERS_PER_Q;
4234         else {
4235                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4236                 if (buffers_needed < 0) {
4237                         card->stats.tx_dropped++;
4238                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4239                         return -EBUSY;
4240                 }
4241                 queue->next_buf_to_fill =
4242                         (queue->next_buf_to_fill + buffers_needed) %
4243                         QDIO_MAX_BUFFERS_PER_Q;
4244         }
4245         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4246         if (ctx == NULL) {
4247                 qeth_fill_buffer(queue, buffer, skb);
4248                 qeth_flush_buffers(queue, 0, index, 1);
4249         } else {
4250                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4251                 WARN_ON(buffers_needed != flush_cnt);
4252                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4253         }
4254         return 0;
4255 }
4256
4257 static inline int
4258 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4259                     struct sk_buff *skb, struct qeth_hdr *hdr,
4260                     int elements_needed, struct qeth_eddp_context *ctx)
4261 {
4262         struct qeth_qdio_out_buffer *buffer;
4263         int start_index;
4264         int flush_count = 0;
4265         int do_pack = 0;
4266         int tmp;
4267         int rc = 0;
4268
4269         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4270
4271         /* spin until we get the queue ... */
4272         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4273                                        QETH_OUT_Q_LOCKED,
4274                                        &queue->state));
4275         start_index = queue->next_buf_to_fill;
4276         buffer = &queue->bufs[queue->next_buf_to_fill];
4277         /*
4278          * check if buffer is empty to make sure that we do not 'overtake'
4279          * ourselves and try to fill a buffer that is already primed
4280          */
4281         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4282                 card->stats.tx_dropped++;
4283                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4284                 return -EBUSY;
4285         }
4286         /* check if we need to switch packing state of this queue */
4287         qeth_switch_to_packing_if_needed(queue);
4288         if (queue->do_pack){
4289                 do_pack = 1;
4290                 if (ctx == NULL) {
4291                         /* does packet fit in current buffer? */
4292                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4293                             buffer->next_element_to_fill) < elements_needed){
4294                                 /* ... no -> set state PRIMED */
4295                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4296                                 flush_count++;
4297                                 queue->next_buf_to_fill =
4298                                         (queue->next_buf_to_fill + 1) %
4299                                         QDIO_MAX_BUFFERS_PER_Q;
4300                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4301                                 /* we did a step forward, so check buffer state
4302                                  * again */
4303                                 if (atomic_read(&buffer->state) !=
4304                                                 QETH_QDIO_BUF_EMPTY){
4305                                         card->stats.tx_dropped++;
4306                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4307                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4308                                         return -EBUSY;
4309                                 }
4310                         }
4311                 } else {
4312                         /* check if we have enough elements (including following
4313                          * free buffers) to handle eddp context */
4314                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4315                                 printk("eddp tx_dropped 1\n");
4316                                 card->stats.tx_dropped++;
4317                                 rc = -EBUSY;
4318                                 goto out;
4319                         }
4320                 }
4321         }
4322         if (ctx == NULL)
4323                 tmp = qeth_fill_buffer(queue, buffer, skb);
4324         else {
4325                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4326                 if (tmp < 0) {
4327                         printk("eddp tx_dropped 2\n");
4328                         card->stats.tx_dropped++;
4329                         rc = - EBUSY;
4330                         goto out;
4331                 }
4332         }
4333         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4334                                   QDIO_MAX_BUFFERS_PER_Q;
4335         flush_count += tmp;
4336 out:
4337         if (flush_count)
4338                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4339         /*
4340          * queue->state will go from LOCKED -> UNLOCKED or from
4341          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4342          * (switch packing state or flush buffer to get another pci flag out).
4343          * In that case we will enter this loop
4344          */
4345         while (atomic_dec_return(&queue->state)){
4346                 flush_count = 0;
4347                 start_index = queue->next_buf_to_fill;
4348                 /* check if we can go back to non-packing state */
4349                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4350                 /*
4351                  * check if we need to flush a packing buffer to get a pci
4352                  * flag out on the queue
4353                  */
4354                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4355                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4356                 if (flush_count)
4357                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4358         }
4359         /* at this point the queue is UNLOCKED again */
4360 #ifdef CONFIG_QETH_PERF_STATS
4361         if (do_pack)
4362                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4363 #endif /* CONFIG_QETH_PERF_STATS */
4364
4365         return rc;
4366 }
4367
4368 static inline int
4369 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4370                      struct sk_buff *skb, int elems)
4371 {
4372         int elements_needed = 0;
4373
4374         if (skb_shinfo(skb)->nr_frags > 0) {
4375                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4376         }
4377         if (elements_needed == 0 )
4378                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4379                                         + skb->len) >> PAGE_SHIFT);
4380         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4381                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4382                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4383                           (elements_needed+elems), skb->len);
4384                 return 0;
4385         }
4386         return elements_needed;
4387 }
4388
4389 static inline int
4390 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4391 {
4392         int ipv = 0;
4393         int cast_type;
4394         struct qeth_qdio_out_q *queue;
4395         struct qeth_hdr *hdr = NULL;
4396         int elements_needed = 0;
4397         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4398         struct qeth_eddp_context *ctx = NULL;
4399         int rc;
4400
4401         QETH_DBF_TEXT(trace, 6, "sendpkt");
4402
4403         if (!card->options.layer2) {
4404                 ipv = qeth_get_ip_version(skb);
4405                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4406                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4407                                 card->stats.tx_dropped++;
4408                                 dev_kfree_skb_irq(skb);
4409                                 return 0;
4410                         }
4411                         if(card->dev->type == ARPHRD_IEEE802_TR){
4412                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4413                         } else {
4414                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4415                         }
4416                 }
4417         }
4418         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4419                 (skb->protocol == htons(ETH_P_IPV6))) {
4420                 dev_kfree_skb_any(skb);
4421                 return 0;
4422         }
4423         cast_type = qeth_get_cast_type(card, skb);
4424         if ((cast_type == RTN_BROADCAST) &&
4425             (card->info.broadcast_capable == 0)){
4426                 card->stats.tx_dropped++;
4427                 card->stats.tx_errors++;
4428                 dev_kfree_skb_any(skb);
4429                 return NETDEV_TX_OK;
4430         }
4431         queue = card->qdio.out_qs
4432                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4433
4434         if (skb_shinfo(skb)->tso_size)
4435                 large_send = card->options.large_send;
4436
4437         /*are we able to do TSO ? If so ,prepare and send it from here */
4438         if ((large_send == QETH_LARGE_SEND_TSO) &&
4439             (cast_type == RTN_UNSPEC)) {
4440                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4441                 if (rc) {
4442                         card->stats.tx_dropped++;
4443                         card->stats.tx_errors++;
4444                         dev_kfree_skb_any(skb);
4445                         return NETDEV_TX_OK;
4446                 }
4447                 elements_needed++;
4448         } else {
4449                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4450                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4451                         return rc;
4452                 }
4453                 if (card->info.type != QETH_CARD_TYPE_OSN)
4454                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4455         }
4456
4457         if (large_send == QETH_LARGE_SEND_EDDP) {
4458                 ctx = qeth_eddp_create_context(card, skb, hdr);
4459                 if (ctx == NULL) {
4460                         PRINT_WARN("could not create eddp context\n");
4461                         return -EINVAL;
4462                 }
4463         } else {
4464                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4465                                                  elements_needed);
4466                 if (!elems)
4467                         return -EINVAL;
4468                 elements_needed += elems;
4469         }
4470
4471         if (card->info.type != QETH_CARD_TYPE_IQD)
4472                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4473                                          elements_needed, ctx);
4474         else
4475                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4476                                               elements_needed, ctx);
4477         if (!rc){
4478                 card->stats.tx_packets++;
4479                 card->stats.tx_bytes += skb->len;
4480 #ifdef CONFIG_QETH_PERF_STATS
4481                 if (skb_shinfo(skb)->tso_size &&
4482                    !(large_send == QETH_LARGE_SEND_NO)) {
4483                         card->perf_stats.large_send_bytes += skb->len;
4484                         card->perf_stats.large_send_cnt++;
4485                 }
4486                 if (skb_shinfo(skb)->nr_frags > 0){
4487                         card->perf_stats.sg_skbs_sent++;
4488                         /* nr_frags + skb->data */
4489                         card->perf_stats.sg_frags_sent +=
4490                                 skb_shinfo(skb)->nr_frags + 1;
4491                 }
4492 #endif /* CONFIG_QETH_PERF_STATS */
4493         }
4494         if (ctx != NULL) {
4495                 /* drop creator's reference */
4496                 qeth_eddp_put_context(ctx);
4497                 /* free skb; it's not referenced by a buffer */
4498                 if (rc == 0)
4499                         dev_kfree_skb_any(skb);
4500
4501         }
4502         return rc;
4503 }
4504
4505 static int
4506 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4507 {
4508         struct qeth_card *card = (struct qeth_card *) dev->priv;
4509         int rc = 0;
4510
4511         switch(regnum){
4512         case MII_BMCR: /* Basic mode control register */
4513                 rc = BMCR_FULLDPLX;
4514                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4515                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4516                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4517                         rc |= BMCR_SPEED100;
4518                 break;
4519         case MII_BMSR: /* Basic mode status register */
4520                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4521                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4522                      BMSR_100BASE4;
4523                 break;
4524         case MII_PHYSID1: /* PHYS ID 1 */
4525                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4526                      dev->dev_addr[2];
4527                 rc = (rc >> 5) & 0xFFFF;
4528                 break;
4529         case MII_PHYSID2: /* PHYS ID 2 */
4530                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4531                 break;
4532         case MII_ADVERTISE: /* Advertisement control reg */
4533                 rc = ADVERTISE_ALL;
4534                 break;
4535         case MII_LPA: /* Link partner ability reg */
4536                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4537                      LPA_100BASE4 | LPA_LPACK;
4538                 break;
4539         case MII_EXPANSION: /* Expansion register */
4540                 break;
4541         case MII_DCOUNTER: /* disconnect counter */
4542                 break;
4543         case MII_FCSCOUNTER: /* false carrier counter */
4544                 break;
4545         case MII_NWAYTEST: /* N-way auto-neg test register */
4546                 break;
4547         case MII_RERRCOUNTER: /* rx error counter */
4548                 rc = card->stats.rx_errors;
4549                 break;
4550         case MII_SREVISION: /* silicon revision */
4551                 break;
4552         case MII_RESV1: /* reserved 1 */
4553                 break;
4554         case MII_LBRERROR: /* loopback, rx, bypass error */
4555                 break;
4556         case MII_PHYADDR: /* physical address */
4557                 break;
4558         case MII_RESV2: /* reserved 2 */
4559                 break;
4560         case MII_TPISTATUS: /* TPI status for 10mbps */
4561                 break;
4562         case MII_NCONFIG: /* network interface config */
4563                 break;
4564         default:
4565                 rc = 0;
4566                 break;
4567         }
4568         return rc;
4569 }
4570
4571 static void
4572 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4573 {
4574         switch(regnum){
4575         case MII_BMCR: /* Basic mode control register */
4576         case MII_BMSR: /* Basic mode status register */
4577         case MII_PHYSID1: /* PHYS ID 1 */
4578         case MII_PHYSID2: /* PHYS ID 2 */
4579         case MII_ADVERTISE: /* Advertisement control reg */
4580         case MII_LPA: /* Link partner ability reg */
4581         case MII_EXPANSION: /* Expansion register */
4582         case MII_DCOUNTER: /* disconnect counter */
4583         case MII_FCSCOUNTER: /* false carrier counter */
4584         case MII_NWAYTEST: /* N-way auto-neg test register */
4585         case MII_RERRCOUNTER: /* rx error counter */
4586         case MII_SREVISION: /* silicon revision */
4587         case MII_RESV1: /* reserved 1 */
4588         case MII_LBRERROR: /* loopback, rx, bypass error */
4589         case MII_PHYADDR: /* physical address */
4590         case MII_RESV2: /* reserved 2 */
4591         case MII_TPISTATUS: /* TPI status for 10mbps */
4592         case MII_NCONFIG: /* network interface config */
4593         default:
4594                 break;
4595         }
4596 }
4597
4598 static inline const char *
4599 qeth_arp_get_error_cause(int *rc)
4600 {
4601         switch (*rc) {
4602         case QETH_IPA_ARP_RC_FAILED:
4603                 *rc = -EIO;
4604                 return "operation failed";
4605         case QETH_IPA_ARP_RC_NOTSUPP:
4606                 *rc = -EOPNOTSUPP;
4607                 return "operation not supported";
4608         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4609                 *rc = -EINVAL;
4610                 return "argument out of range";
4611         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4612                 *rc = -EOPNOTSUPP;
4613                 return "query operation not supported";
4614         case QETH_IPA_ARP_RC_Q_NO_DATA:
4615                 *rc = -ENOENT;
4616                 return "no query data available";
4617         default:
4618                 return "unknown error";
4619         }
4620 }
4621
4622 static int
4623 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4624                              __u16, long);
4625
4626 static int
4627 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4628 {
4629         int tmp;
4630         int rc;
4631
4632         QETH_DBF_TEXT(trace,3,"arpstnoe");
4633
4634         /*
4635          * currently GuestLAN only supports the ARP assist function
4636          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4637          * thus we say EOPNOTSUPP for this ARP function
4638          */
4639         if (card->info.guestlan)
4640                 return -EOPNOTSUPP;
4641         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4642                 PRINT_WARN("ARP processing not supported "
4643                            "on %s!\n", QETH_CARD_IFNAME(card));
4644                 return -EOPNOTSUPP;
4645         }
4646         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4647                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4648                                           no_entries);
4649         if (rc) {
4650                 tmp = rc;
4651                 PRINT_WARN("Could not set number of ARP entries on %s: "
4652                            "%s (0x%x/%d)\n",
4653                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4654                            tmp, tmp);
4655         }
4656         return rc;
4657 }
4658
4659 static inline void
4660 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4661                                struct qeth_arp_query_data *qdata,
4662                                int entry_size, int uentry_size)
4663 {
4664         char *entry_ptr;
4665         char *uentry_ptr;
4666         int i;
4667
4668         entry_ptr = (char *)&qdata->data;
4669         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4670         for (i = 0; i < qdata->no_entries; ++i){
4671                 /* strip off 32 bytes "media specific information" */
4672                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4673                 entry_ptr += entry_size;
4674                 uentry_ptr += uentry_size;
4675         }
4676 }
4677
4678 static int
4679 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4680                   unsigned long data)
4681 {
4682         struct qeth_ipa_cmd *cmd;
4683         struct qeth_arp_query_data *qdata;
4684         struct qeth_arp_query_info *qinfo;
4685         int entry_size;
4686         int uentry_size;
4687         int i;
4688
4689         QETH_DBF_TEXT(trace,4,"arpquecb");
4690
4691         qinfo = (struct qeth_arp_query_info *) reply->param;
4692         cmd = (struct qeth_ipa_cmd *) data;
4693         if (cmd->hdr.return_code) {
4694                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4695                 return 0;
4696         }
4697         if (cmd->data.setassparms.hdr.return_code) {
4698                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4699                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4700                 return 0;
4701         }
4702         qdata = &cmd->data.setassparms.data.query_arp;
4703         switch(qdata->reply_bits){
4704         case 5:
4705                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4706                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4707                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4708                 break;
4709         case 7:
4710                 /* fall through to default */
4711         default:
4712                 /* tr is the same as eth -> entry7 */
4713                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4714                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4715                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4716                 break;
4717         }
4718         /* check if there is enough room in userspace */
4719         if ((qinfo->udata_len - qinfo->udata_offset) <
4720                         qdata->no_entries * uentry_size){
4721                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4722                 cmd->hdr.return_code = -ENOMEM;
4723                 PRINT_WARN("query ARP user space buffer is too small for "
4724                            "the returned number of ARP entries. "
4725                            "Aborting query!\n");
4726                 goto out_error;
4727         }
4728         QETH_DBF_TEXT_(trace, 4, "anore%i",
4729                        cmd->data.setassparms.hdr.number_of_replies);
4730         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4731         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4732
4733         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4734                 /* strip off "media specific information" */
4735                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4736                                                uentry_size);
4737         } else
4738                 /*copy entries to user buffer*/
4739                 memcpy(qinfo->udata + qinfo->udata_offset,
4740                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4741
4742         qinfo->no_entries += qdata->no_entries;
4743         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4744         /* check if all replies received ... */
4745         if (cmd->data.setassparms.hdr.seq_no <
4746             cmd->data.setassparms.hdr.number_of_replies)
4747                 return 1;
4748         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4749         /* keep STRIP_ENTRIES flag so the user program can distinguish
4750          * stripped entries from normal ones */
4751         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4752                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4753         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4754         return 0;
4755 out_error:
4756         i = 0;
4757         memcpy(qinfo->udata, &i, 4);
4758         return 0;
4759 }
4760
4761 static int
4762 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4763                       int len, int (*reply_cb)(struct qeth_card *,
4764                                                struct qeth_reply *,
4765                                                unsigned long),
4766                       void *reply_param)
4767 {
4768         QETH_DBF_TEXT(trace,4,"sendarp");
4769
4770         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4771         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4772                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4773         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4774                                       reply_cb, reply_param);
4775 }
4776
4777 static int
4778 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4779                       int len, int (*reply_cb)(struct qeth_card *,
4780                                                struct qeth_reply *,
4781                                                unsigned long),
4782                       void *reply_param)
4783 {
4784         u16 s1, s2;
4785
4786         QETH_DBF_TEXT(trace,4,"sendsnmp");
4787
4788         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4789         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4790                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4791         /* adjust PDU length fields in IPA_PDU_HEADER */
4792         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4793         s2 = (u32) len;
4794         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4795         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4796         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4797         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4798         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4799                                       reply_cb, reply_param);
4800 }
4801
4802 static struct qeth_cmd_buffer *
4803 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4804                          __u16, __u16, enum qeth_prot_versions);
4805 static int
4806 qeth_arp_query(struct qeth_card *card, char *udata)
4807 {
4808         struct qeth_cmd_buffer *iob;
4809         struct qeth_arp_query_info qinfo = {0, };
4810         int tmp;
4811         int rc;
4812
4813         QETH_DBF_TEXT(trace,3,"arpquery");
4814
4815         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4816                                IPA_ARP_PROCESSING)) {
4817                 PRINT_WARN("ARP processing not supported "
4818                            "on %s!\n", QETH_CARD_IFNAME(card));
4819                 return -EOPNOTSUPP;
4820         }
4821         /* get size of userspace buffer and mask_bits -> 6 bytes */
4822         if (copy_from_user(&qinfo, udata, 6))
4823                 return -EFAULT;
4824         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4825                 return -ENOMEM;
4826         memset(qinfo.udata, 0, qinfo.udata_len);
4827         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4828         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4829                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4830                                        sizeof(int),QETH_PROT_IPV4);
4831
4832         rc = qeth_send_ipa_arp_cmd(card, iob,
4833                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4834                                    qeth_arp_query_cb, (void *)&qinfo);
4835         if (rc) {
4836                 tmp = rc;
4837                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4838                            "(0x%x/%d)\n",
4839                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4840                            tmp, tmp);
4841                 copy_to_user(udata, qinfo.udata, 4);
4842         } else {
4843                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4844         }
4845         kfree(qinfo.udata);
4846         return rc;
4847 }
4848
4849 /**
4850  * SNMP command callback
4851  */
4852 static int
4853 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4854                      unsigned long sdata)
4855 {
4856         struct qeth_ipa_cmd *cmd;
4857         struct qeth_arp_query_info *qinfo;
4858         struct qeth_snmp_cmd *snmp;
4859         unsigned char *data;
4860         __u16 data_len;
4861
4862         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4863
4864         cmd = (struct qeth_ipa_cmd *) sdata;
4865         data = (unsigned char *)((char *)cmd - reply->offset);
4866         qinfo = (struct qeth_arp_query_info *) reply->param;
4867         snmp = &cmd->data.setadapterparms.data.snmp;
4868
4869         if (cmd->hdr.return_code) {
4870                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4871                 return 0;
4872         }
4873         if (cmd->data.setadapterparms.hdr.return_code) {
4874                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4875                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4876                 return 0;
4877         }
4878         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4879         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4880                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4881         else
4882                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4883
4884         /* check if there is enough room in userspace */
4885         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4886                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4887                 cmd->hdr.return_code = -ENOMEM;
4888                 return 0;
4889         }
4890         QETH_DBF_TEXT_(trace, 4, "snore%i",
4891                        cmd->data.setadapterparms.hdr.used_total);
4892         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4893         /*copy entries to user buffer*/
4894         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4895                 memcpy(qinfo->udata + qinfo->udata_offset,
4896                        (char *)snmp,
4897                        data_len + offsetof(struct qeth_snmp_cmd,data));
4898                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4899         } else {
4900                 memcpy(qinfo->udata + qinfo->udata_offset,
4901                        (char *)&snmp->request, data_len);
4902         }
4903         qinfo->udata_offset += data_len;
4904         /* check if all replies received ... */
4905                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4906                                cmd->data.setadapterparms.hdr.used_total);
4907                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4908                                cmd->data.setadapterparms.hdr.seq_no);
4909         if (cmd->data.setadapterparms.hdr.seq_no <
4910             cmd->data.setadapterparms.hdr.used_total)
4911                 return 1;
4912         return 0;
4913 }
4914
4915 static struct qeth_cmd_buffer *
4916 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4917                        enum qeth_prot_versions );
4918
4919 static struct qeth_cmd_buffer *
4920 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4921 {
4922         struct qeth_cmd_buffer *iob;
4923         struct qeth_ipa_cmd *cmd;
4924
4925         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4926                                      QETH_PROT_IPV4);
4927         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4928         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4929         cmd->data.setadapterparms.hdr.command_code = command;
4930         cmd->data.setadapterparms.hdr.used_total = 1;
4931         cmd->data.setadapterparms.hdr.seq_no = 1;
4932
4933         return iob;
4934 }
4935
4936 /**
4937  * function to send SNMP commands to OSA-E card
4938  */
4939 static int
4940 qeth_snmp_command(struct qeth_card *card, char *udata)
4941 {
4942         struct qeth_cmd_buffer *iob;
4943         struct qeth_ipa_cmd *cmd;
4944         struct qeth_snmp_ureq *ureq;
4945         int req_len;
4946         struct qeth_arp_query_info qinfo = {0, };
4947         int rc = 0;
4948
4949         QETH_DBF_TEXT(trace,3,"snmpcmd");
4950
4951         if (card->info.guestlan)
4952                 return -EOPNOTSUPP;
4953
4954         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4955             (!card->options.layer2) ) {
4956                 PRINT_WARN("SNMP Query MIBS not supported "
4957                            "on %s!\n", QETH_CARD_IFNAME(card));
4958                 return -EOPNOTSUPP;
4959         }
4960         /* skip 4 bytes (data_len struct member) to get req_len */
4961         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4962                 return -EFAULT;
4963         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4964         if (!ureq) {
4965                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4966                 return -ENOMEM;
4967         }
4968         if (copy_from_user(ureq, udata,
4969                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4970                 kfree(ureq);
4971                 return -EFAULT;
4972         }
4973         qinfo.udata_len = ureq->hdr.data_len;
4974         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4975                 kfree(ureq);
4976                 return -ENOMEM;
4977         }
4978         memset(qinfo.udata, 0, qinfo.udata_len);
4979         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4980
4981         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4982                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4983         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4984         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4985         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4986                                     qeth_snmp_command_cb, (void *)&qinfo);
4987         if (rc)
4988                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4989                            QETH_CARD_IFNAME(card), rc);
4990          else
4991                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4992
4993         kfree(ureq);
4994         kfree(qinfo.udata);
4995         return rc;
4996 }
4997
4998 static int
4999 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5000                             unsigned long);
5001
5002 static int
5003 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5004                       __u16, long,
5005                       int (*reply_cb)
5006                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5007                       void *reply_param);
5008
5009 static int
5010 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5011 {
5012         struct qeth_cmd_buffer *iob;
5013         char buf[16];
5014         int tmp;
5015         int rc;
5016
5017         QETH_DBF_TEXT(trace,3,"arpadent");
5018
5019         /*
5020          * currently GuestLAN only supports the ARP assist function
5021          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5022          * thus we say EOPNOTSUPP for this ARP function
5023          */
5024         if (card->info.guestlan)
5025                 return -EOPNOTSUPP;
5026         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5027                 PRINT_WARN("ARP processing not supported "
5028                            "on %s!\n", QETH_CARD_IFNAME(card));
5029                 return -EOPNOTSUPP;
5030         }
5031
5032         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5033                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5034                                        sizeof(struct qeth_arp_cache_entry),
5035                                        QETH_PROT_IPV4);
5036         rc = qeth_send_setassparms(card, iob,
5037                                    sizeof(struct qeth_arp_cache_entry),
5038                                    (unsigned long) entry,
5039                                    qeth_default_setassparms_cb, NULL);
5040         if (rc) {
5041                 tmp = rc;
5042                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5043                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5044                            "%s (0x%x/%d)\n",
5045                            buf, QETH_CARD_IFNAME(card),
5046                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5047         }
5048         return rc;
5049 }
5050
5051 static int
5052 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5053 {
5054         struct qeth_cmd_buffer *iob;
5055         char buf[16] = {0, };
5056         int tmp;
5057         int rc;
5058
5059         QETH_DBF_TEXT(trace,3,"arprment");
5060
5061         /*
5062          * currently GuestLAN only supports the ARP assist function
5063          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5064          * thus we say EOPNOTSUPP for this ARP function
5065          */
5066         if (card->info.guestlan)
5067                 return -EOPNOTSUPP;
5068         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5069                 PRINT_WARN("ARP processing not supported "
5070                            "on %s!\n", QETH_CARD_IFNAME(card));
5071                 return -EOPNOTSUPP;
5072         }
5073         memcpy(buf, entry, 12);
5074         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5075                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5076                                        12,
5077                                        QETH_PROT_IPV4);
5078         rc = qeth_send_setassparms(card, iob,
5079                                    12, (unsigned long)buf,
5080                                    qeth_default_setassparms_cb, NULL);
5081         if (rc) {
5082                 tmp = rc;
5083                 memset(buf, 0, 16);
5084                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5085                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5086                            "%s (0x%x/%d)\n",
5087                            buf, QETH_CARD_IFNAME(card),
5088                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5089         }
5090         return rc;
5091 }
5092
5093 static int
5094 qeth_arp_flush_cache(struct qeth_card *card)
5095 {
5096         int rc;
5097         int tmp;
5098
5099         QETH_DBF_TEXT(trace,3,"arpflush");
5100
5101         /*
5102          * currently GuestLAN only supports the ARP assist function
5103          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5104          * thus we say EOPNOTSUPP for this ARP function
5105         */
5106         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5107                 return -EOPNOTSUPP;
5108         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5109                 PRINT_WARN("ARP processing not supported "
5110                            "on %s!\n", QETH_CARD_IFNAME(card));
5111                 return -EOPNOTSUPP;
5112         }
5113         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5114                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5115         if (rc){
5116                 tmp = rc;
5117                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5118                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5119                            tmp, tmp);
5120         }
5121         return rc;
5122 }
5123
5124 static int
5125 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5126 {
5127         struct qeth_card *card = (struct qeth_card *)dev->priv;
5128         struct qeth_arp_cache_entry arp_entry;
5129         struct mii_ioctl_data *mii_data;
5130         int rc = 0;
5131
5132         if (!card)
5133                 return -ENODEV;
5134
5135         if ((card->state != CARD_STATE_UP) &&
5136             (card->state != CARD_STATE_SOFTSETUP))
5137                 return -ENODEV;
5138
5139         if (card->info.type == QETH_CARD_TYPE_OSN)
5140                 return -EPERM;
5141
5142         switch (cmd){
5143         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5144                 if ( !capable(CAP_NET_ADMIN) ||
5145                      (card->options.layer2) ) {
5146                         rc = -EPERM;
5147                         break;
5148                 }
5149                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5150                 break;
5151         case SIOC_QETH_ARP_QUERY_INFO:
5152                 if ( !capable(CAP_NET_ADMIN) ||
5153                      (card->options.layer2) ) {
5154                         rc = -EPERM;
5155                         break;
5156                 }
5157                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5158                 break;
5159         case SIOC_QETH_ARP_ADD_ENTRY:
5160                 if ( !capable(CAP_NET_ADMIN) ||
5161                      (card->options.layer2) ) {
5162                         rc = -EPERM;
5163                         break;
5164                 }
5165                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5166                                    sizeof(struct qeth_arp_cache_entry)))
5167                         rc = -EFAULT;
5168                 else
5169                         rc = qeth_arp_add_entry(card, &arp_entry);
5170                 break;
5171         case SIOC_QETH_ARP_REMOVE_ENTRY:
5172                 if ( !capable(CAP_NET_ADMIN) ||
5173                      (card->options.layer2) ) {
5174                         rc = -EPERM;
5175                         break;
5176                 }
5177                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5178                                    sizeof(struct qeth_arp_cache_entry)))
5179                         rc = -EFAULT;
5180                 else
5181                         rc = qeth_arp_remove_entry(card, &arp_entry);
5182                 break;
5183         case SIOC_QETH_ARP_FLUSH_CACHE:
5184                 if ( !capable(CAP_NET_ADMIN) ||
5185                      (card->options.layer2) ) {
5186                         rc = -EPERM;
5187                         break;
5188                 }
5189                 rc = qeth_arp_flush_cache(card);
5190                 break;
5191         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5192                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5193                 break;
5194         case SIOC_QETH_GET_CARD_TYPE:
5195                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5196                     !card->info.guestlan)
5197                         return 1;
5198                 return 0;
5199                 break;
5200         case SIOCGMIIPHY:
5201                 mii_data = if_mii(rq);
5202                 mii_data->phy_id = 0;
5203                 break;
5204         case SIOCGMIIREG:
5205                 mii_data = if_mii(rq);
5206                 if (mii_data->phy_id != 0)
5207                         rc = -EINVAL;
5208                 else
5209                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5210                                                            mii_data->reg_num);
5211                 break;
5212         case SIOCSMIIREG:
5213                 rc = -EOPNOTSUPP;
5214                 break;
5215                 /* TODO: remove return if qeth_mdio_write does something */
5216                 if (!capable(CAP_NET_ADMIN)){
5217                         rc = -EPERM;
5218                         break;
5219                 }
5220                 mii_data = if_mii(rq);
5221                 if (mii_data->phy_id != 0)
5222                         rc = -EINVAL;
5223                 else
5224                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5225                                         mii_data->val_in);
5226                 break;
5227         default:
5228                 rc = -EOPNOTSUPP;
5229         }
5230         if (rc)
5231                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5232         return rc;
5233 }
5234
5235 static struct net_device_stats *
5236 qeth_get_stats(struct net_device *dev)
5237 {
5238         struct qeth_card *card;
5239
5240         card = (struct qeth_card *) (dev->priv);
5241
5242         QETH_DBF_TEXT(trace,5,"getstat");
5243
5244         return &card->stats;
5245 }
5246
5247 static int
5248 qeth_change_mtu(struct net_device *dev, int new_mtu)
5249 {
5250         struct qeth_card *card;
5251         char dbf_text[15];
5252
5253         card = (struct qeth_card *) (dev->priv);
5254
5255         QETH_DBF_TEXT(trace,4,"chgmtu");
5256         sprintf(dbf_text, "%8x", new_mtu);
5257         QETH_DBF_TEXT(trace,4,dbf_text);
5258
5259         if (new_mtu < 64)
5260                 return -EINVAL;
5261         if (new_mtu > 65535)
5262                 return -EINVAL;
5263         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5264             (!qeth_mtu_is_valid(card, new_mtu)))
5265                 return -EINVAL;
5266         dev->mtu = new_mtu;
5267         return 0;
5268 }
5269
5270 #ifdef CONFIG_QETH_VLAN
5271 static void
5272 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5273 {
5274         struct qeth_card *card;
5275         unsigned long flags;
5276
5277         QETH_DBF_TEXT(trace,4,"vlanreg");
5278
5279         card = (struct qeth_card *) dev->priv;
5280         spin_lock_irqsave(&card->vlanlock, flags);
5281         card->vlangrp = grp;
5282         spin_unlock_irqrestore(&card->vlanlock, flags);
5283 }
5284
5285 static inline void
5286 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5287                       unsigned short vid)
5288 {
5289         int i;
5290         struct sk_buff *skb;
5291         struct sk_buff_head tmp_list;
5292
5293         skb_queue_head_init(&tmp_list);
5294         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5295                 while ((skb = skb_dequeue(&buf->skb_list))){
5296                         if (vlan_tx_tag_present(skb) &&
5297                             (vlan_tx_tag_get(skb) == vid)) {
5298                                 atomic_dec(&skb->users);
5299                                 dev_kfree_skb(skb);
5300                         } else
5301                                 skb_queue_tail(&tmp_list, skb);
5302                 }
5303         }
5304         while ((skb = skb_dequeue(&tmp_list)))
5305                 skb_queue_tail(&buf->skb_list, skb);
5306 }
5307
5308 static void
5309 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5310 {
5311         int i, j;
5312
5313         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5314         for (i = 0; i < card->qdio.no_out_queues; ++i){
5315                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5316                         qeth_free_vlan_buffer(card, &card->qdio.
5317                                               out_qs[i]->bufs[j], vid);
5318         }
5319 }
5320
5321 static void
5322 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5323 {
5324         struct in_device *in_dev;
5325         struct in_ifaddr *ifa;
5326         struct qeth_ipaddr *addr;
5327
5328         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5329
5330         rcu_read_lock();
5331         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5332         if (!in_dev)
5333                 goto out;
5334         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5335                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5336                 if (addr){
5337                         addr->u.a4.addr = ifa->ifa_address;
5338                         addr->u.a4.mask = ifa->ifa_mask;
5339                         addr->type = QETH_IP_TYPE_NORMAL;
5340                         if (!qeth_delete_ip(card, addr))
5341                                 kfree(addr);
5342                 }
5343         }
5344 out:
5345         rcu_read_unlock();
5346 }
5347
5348 static void
5349 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5350 {
5351 #ifdef CONFIG_QETH_IPV6
5352         struct inet6_dev *in6_dev;
5353         struct inet6_ifaddr *ifa;
5354         struct qeth_ipaddr *addr;
5355
5356         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5357
5358         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5359         if (!in6_dev)
5360                 return;
5361         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5362                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5363                 if (addr){
5364                         memcpy(&addr->u.a6.addr, &ifa->addr,
5365                                sizeof(struct in6_addr));
5366                         addr->u.a6.pfxlen = ifa->prefix_len;
5367                         addr->type = QETH_IP_TYPE_NORMAL;
5368                         if (!qeth_delete_ip(card, addr))
5369                                 kfree(addr);
5370                 }
5371         }
5372         in6_dev_put(in6_dev);
5373 #endif /* CONFIG_QETH_IPV6 */
5374 }
5375
5376 static void
5377 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5378 {
5379         if (card->options.layer2 || !card->vlangrp)
5380                 return;
5381         qeth_free_vlan_addresses4(card, vid);
5382         qeth_free_vlan_addresses6(card, vid);
5383 }
5384
5385 static int
5386 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5387                                struct qeth_reply *reply,
5388                                unsigned long data)
5389 {
5390         struct qeth_ipa_cmd *cmd;
5391
5392         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5393         cmd = (struct qeth_ipa_cmd *) data;
5394         if (cmd->hdr.return_code) {
5395                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5396                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5397                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5398                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5399                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5400                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5401         }
5402         return 0;
5403 }
5404
5405 static int
5406 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5407                             enum qeth_ipa_cmds ipacmd)
5408 {
5409         struct qeth_ipa_cmd *cmd;
5410         struct qeth_cmd_buffer *iob;
5411
5412         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5413         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5414         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5415         cmd->data.setdelvlan.vlan_id = i;
5416         return qeth_send_ipa_cmd(card, iob,
5417                                  qeth_layer2_send_setdelvlan_cb, NULL);
5418 }
5419
5420 static void
5421 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5422 {
5423         unsigned short  i;
5424
5425         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5426
5427         if (!card->vlangrp)
5428                 return;
5429         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5430                 if (card->vlangrp->vlan_devices[i] == NULL)
5431                         continue;
5432                 if (clear)
5433                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5434                 else
5435                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5436         }
5437 }
5438
5439 /*add_vid is layer 2 used only ....*/
5440 static void
5441 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5442 {
5443         struct qeth_card *card;
5444
5445         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5446
5447         card = (struct qeth_card *) dev->priv;
5448         if (!card->options.layer2)
5449                 return;
5450         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5451 }
5452
5453 /*... kill_vid used for both modes*/
5454 static void
5455 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5456 {
5457         struct qeth_card *card;
5458         unsigned long flags;
5459
5460         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5461
5462         card = (struct qeth_card *) dev->priv;
5463         /* free all skbs for the vlan device */
5464         qeth_free_vlan_skbs(card, vid);
5465         spin_lock_irqsave(&card->vlanlock, flags);
5466         /* unregister IP addresses of vlan device */
5467         qeth_free_vlan_addresses(card, vid);
5468         if (card->vlangrp)
5469                 card->vlangrp->vlan_devices[vid] = NULL;
5470         spin_unlock_irqrestore(&card->vlanlock, flags);
5471         if (card->options.layer2)
5472                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5473         qeth_set_multicast_list(card->dev);
5474 }
5475 #endif
5476
5477 /**
5478  * set multicast address on card
5479  */
5480 static void
5481 qeth_set_multicast_list(struct net_device *dev)
5482 {
5483         struct qeth_card *card = (struct qeth_card *) dev->priv;
5484
5485         if (card->info.type == QETH_CARD_TYPE_OSN)
5486                 return ;
5487
5488         QETH_DBF_TEXT(trace,3,"setmulti");
5489         qeth_delete_mc_addresses(card);
5490         if (card->options.layer2) {
5491                 qeth_layer2_add_multicast(card);
5492                 goto out;
5493         }
5494         qeth_add_multicast_ipv4(card);
5495 #ifdef CONFIG_QETH_IPV6
5496         qeth_add_multicast_ipv6(card);
5497 #endif
5498 out:
5499         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5500                 schedule_work(&card->kernel_thread_starter);
5501 }
5502
5503 static int
5504 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5505 {
5506         return 0;
5507 }
5508
5509 static void
5510 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5511 {
5512         if (dev->type == ARPHRD_IEEE802_TR)
5513                 ip_tr_mc_map(ipm, mac);
5514         else
5515                 ip_eth_mc_map(ipm, mac);
5516 }
5517
5518 static struct qeth_ipaddr *
5519 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5520 {
5521         struct qeth_ipaddr *addr;
5522
5523         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5524         if (addr == NULL) {
5525                 PRINT_WARN("Not enough memory to add address\n");
5526                 return NULL;
5527         }
5528         memset(addr,0,sizeof(struct qeth_ipaddr));
5529         addr->type = QETH_IP_TYPE_NORMAL;
5530         addr->proto = prot;
5531         return addr;
5532 }
5533
5534 int
5535 qeth_osn_assist(struct net_device *dev,
5536                 void *data,
5537                 int data_len)
5538 {
5539         struct qeth_cmd_buffer *iob;
5540         struct qeth_card *card;
5541         int rc;
5542
5543         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5544         if (!dev)
5545                 return -ENODEV;
5546         card = (struct qeth_card *)dev->priv;
5547         if (!card)
5548                 return -ENODEV;
5549         if ((card->state != CARD_STATE_UP) &&
5550             (card->state != CARD_STATE_SOFTSETUP))
5551                 return -ENODEV;
5552         iob = qeth_wait_for_buffer(&card->write);
5553         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5554         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5555         return rc;
5556 }
5557
5558 static struct net_device *
5559 qeth_netdev_by_devno(unsigned char *read_dev_no)
5560 {
5561         struct qeth_card *card;
5562         struct net_device *ndev;
5563         unsigned char *readno;
5564         __u16 temp_dev_no, card_dev_no;
5565         char *endp;
5566         unsigned long flags;
5567
5568         ndev = NULL;
5569         memcpy(&temp_dev_no, read_dev_no, 2);
5570         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5571         list_for_each_entry(card, &qeth_card_list.list, list) {
5572                 readno = CARD_RDEV_ID(card);
5573                 readno += (strlen(readno) - 4);
5574                 card_dev_no = simple_strtoul(readno, &endp, 16);
5575                 if (card_dev_no == temp_dev_no) {
5576                         ndev = card->dev;
5577                         break;
5578                 }
5579         }
5580         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5581         return ndev;
5582 }
5583
5584 int
5585 qeth_osn_register(unsigned char *read_dev_no,
5586                   struct net_device **dev,
5587                   int (*assist_cb)(struct net_device *, void *),
5588                   int (*data_cb)(struct sk_buff *))
5589 {
5590         struct qeth_card * card;
5591
5592         QETH_DBF_TEXT(trace, 2, "osnreg");
5593         *dev = qeth_netdev_by_devno(read_dev_no);
5594         if (*dev == NULL)
5595                 return -ENODEV;
5596         card = (struct qeth_card *)(*dev)->priv;
5597         if (!card)
5598                 return -ENODEV;
5599         if ((assist_cb == NULL) || (data_cb == NULL))
5600                 return -EINVAL;
5601         card->osn_info.assist_cb = assist_cb;
5602         card->osn_info.data_cb = data_cb;
5603         return 0;
5604 }
5605
5606 void
5607 qeth_osn_deregister(struct net_device * dev)
5608 {
5609         struct qeth_card *card;
5610
5611         QETH_DBF_TEXT(trace, 2, "osndereg");
5612         if (!dev)
5613                 return;
5614         card = (struct qeth_card *)dev->priv;
5615         if (!card)
5616                 return;
5617         card->osn_info.assist_cb = NULL;
5618         card->osn_info.data_cb = NULL;
5619         return;
5620 }
5621
5622 static void
5623 qeth_delete_mc_addresses(struct qeth_card *card)
5624 {
5625         struct qeth_ipaddr *iptodo;
5626         unsigned long flags;
5627
5628         QETH_DBF_TEXT(trace,4,"delmc");
5629         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5630         if (!iptodo) {
5631                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5632                 return;
5633         }
5634         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5635         spin_lock_irqsave(&card->ip_lock, flags);
5636         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5637                 kfree(iptodo);
5638         spin_unlock_irqrestore(&card->ip_lock, flags);
5639 }
5640
5641 static inline void
5642 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5643 {
5644         struct qeth_ipaddr *ipm;
5645         struct ip_mc_list *im4;
5646         char buf[MAX_ADDR_LEN];
5647
5648         QETH_DBF_TEXT(trace,4,"addmc");
5649         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5650                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5651                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5652                 if (!ipm)
5653                         continue;
5654                 ipm->u.a4.addr = im4->multiaddr;
5655                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5656                 ipm->is_multicast = 1;
5657                 if (!qeth_add_ip(card,ipm))
5658                         kfree(ipm);
5659         }
5660 }
5661
5662 static inline void
5663 qeth_add_vlan_mc(struct qeth_card *card)
5664 {
5665 #ifdef CONFIG_QETH_VLAN
5666         struct in_device *in_dev;
5667         struct vlan_group *vg;
5668         int i;
5669
5670         QETH_DBF_TEXT(trace,4,"addmcvl");
5671         if ( ((card->options.layer2 == 0) &&
5672               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5673              (card->vlangrp == NULL) )
5674                 return ;
5675
5676         vg = card->vlangrp;
5677         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5678                 if (vg->vlan_devices[i] == NULL ||
5679                     !(vg->vlan_devices[i]->flags & IFF_UP))
5680                         continue;
5681                 in_dev = in_dev_get(vg->vlan_devices[i]);
5682                 if (!in_dev)
5683                         continue;
5684                 read_lock(&in_dev->mc_list_lock);
5685                 qeth_add_mc(card,in_dev);
5686                 read_unlock(&in_dev->mc_list_lock);
5687                 in_dev_put(in_dev);
5688         }
5689 #endif
5690 }
5691
5692 static void
5693 qeth_add_multicast_ipv4(struct qeth_card *card)
5694 {
5695         struct in_device *in4_dev;
5696
5697         QETH_DBF_TEXT(trace,4,"chkmcv4");
5698         in4_dev = in_dev_get(card->dev);
5699         if (in4_dev == NULL)
5700                 return;
5701         read_lock(&in4_dev->mc_list_lock);
5702         qeth_add_mc(card, in4_dev);
5703         qeth_add_vlan_mc(card);
5704         read_unlock(&in4_dev->mc_list_lock);
5705         in_dev_put(in4_dev);
5706 }
5707
5708 static void
5709 qeth_layer2_add_multicast(struct qeth_card *card)
5710 {
5711         struct qeth_ipaddr *ipm;
5712         struct dev_mc_list *dm;
5713
5714         QETH_DBF_TEXT(trace,4,"L2addmc");
5715         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5716                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5717                 if (!ipm)
5718                         continue;
5719                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5720                 ipm->is_multicast = 1;
5721                 if (!qeth_add_ip(card, ipm))
5722                         kfree(ipm);
5723         }
5724 }
5725
5726 #ifdef CONFIG_QETH_IPV6
5727 static inline void
5728 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5729 {
5730         struct qeth_ipaddr *ipm;
5731         struct ifmcaddr6 *im6;
5732         char buf[MAX_ADDR_LEN];
5733
5734         QETH_DBF_TEXT(trace,4,"addmc6");
5735         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5736                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5737                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5738                 if (!ipm)
5739                         continue;
5740                 ipm->is_multicast = 1;
5741                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5742                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5743                        sizeof(struct in6_addr));
5744                 if (!qeth_add_ip(card,ipm))
5745                         kfree(ipm);
5746         }
5747 }
5748
5749 static inline void
5750 qeth_add_vlan_mc6(struct qeth_card *card)
5751 {
5752 #ifdef CONFIG_QETH_VLAN
5753         struct inet6_dev *in_dev;
5754         struct vlan_group *vg;
5755         int i;
5756
5757         QETH_DBF_TEXT(trace,4,"admc6vl");
5758         if ( ((card->options.layer2 == 0) &&
5759               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5760              (card->vlangrp == NULL))
5761                 return ;
5762
5763         vg = card->vlangrp;
5764         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5765                 if (vg->vlan_devices[i] == NULL ||
5766                     !(vg->vlan_devices[i]->flags & IFF_UP))
5767                         continue;
5768                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5769                 if (!in_dev)
5770                         continue;
5771                 read_lock(&in_dev->lock);
5772                 qeth_add_mc6(card,in_dev);
5773                 read_unlock(&in_dev->lock);
5774                 in6_dev_put(in_dev);
5775         }
5776 #endif /* CONFIG_QETH_VLAN */
5777 }
5778
5779 static void
5780 qeth_add_multicast_ipv6(struct qeth_card *card)
5781 {
5782         struct inet6_dev *in6_dev;
5783
5784         QETH_DBF_TEXT(trace,4,"chkmcv6");
5785         if ((card->options.layer2 == 0) &&
5786             (!qeth_is_supported(card, IPA_IPV6)) )
5787                 return ;
5788
5789         in6_dev = in6_dev_get(card->dev);
5790         if (in6_dev == NULL)
5791                 return;
5792         read_lock(&in6_dev->lock);
5793         qeth_add_mc6(card, in6_dev);
5794         qeth_add_vlan_mc6(card);
5795         read_unlock(&in6_dev->lock);
5796         in6_dev_put(in6_dev);
5797 }
5798 #endif /* CONFIG_QETH_IPV6 */
5799
5800 static int
5801 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5802                            enum qeth_ipa_cmds ipacmd,
5803                            int (*reply_cb) (struct qeth_card *,
5804                                             struct qeth_reply*,
5805                                             unsigned long))
5806 {
5807         struct qeth_ipa_cmd *cmd;
5808         struct qeth_cmd_buffer *iob;
5809
5810         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5811         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5812         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5813         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5814         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5815         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5816 }
5817
5818 static int
5819 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5820                                 struct qeth_reply *reply,
5821                                 unsigned long data)
5822 {
5823         struct qeth_ipa_cmd *cmd;
5824         __u8 *mac;
5825
5826         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5827         cmd = (struct qeth_ipa_cmd *) data;
5828         mac = &cmd->data.setdelmac.mac[0];
5829         /* MAC already registered, needed in couple/uncouple case */
5830         if (cmd->hdr.return_code == 0x2005) {
5831                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5832                           "already existing on %s \n",
5833                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5834                           QETH_CARD_IFNAME(card));
5835                 cmd->hdr.return_code = 0;
5836         }
5837         if (cmd->hdr.return_code)
5838                 PRINT_ERR("Could not set group MAC " \
5839                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5840                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5841                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5842         return 0;
5843 }
5844
5845 static int
5846 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5847 {
5848         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5849         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5850                                           qeth_layer2_send_setgroupmac_cb);
5851 }
5852
5853 static int
5854 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5855                                 struct qeth_reply *reply,
5856                                 unsigned long data)
5857 {
5858         struct qeth_ipa_cmd *cmd;
5859         __u8 *mac;
5860
5861         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5862         cmd = (struct qeth_ipa_cmd *) data;
5863         mac = &cmd->data.setdelmac.mac[0];
5864         if (cmd->hdr.return_code)
5865                 PRINT_ERR("Could not delete group MAC " \
5866                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5867                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5868                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5869         return 0;
5870 }
5871
5872 static int
5873 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5874 {
5875         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5876         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5877                                           qeth_layer2_send_delgroupmac_cb);
5878 }
5879
5880 static int
5881 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5882                            struct qeth_reply *reply,
5883                            unsigned long data)
5884 {
5885         struct qeth_ipa_cmd *cmd;
5886
5887         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5888         cmd = (struct qeth_ipa_cmd *) data;
5889         if (cmd->hdr.return_code) {
5890                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5891                 PRINT_WARN("Error in registering MAC address on " \
5892                            "device %s: x%x\n", CARD_BUS_ID(card),
5893                            cmd->hdr.return_code);
5894                 card->info.layer2_mac_registered = 0;
5895                 cmd->hdr.return_code = -EIO;
5896         } else {
5897                 card->info.layer2_mac_registered = 1;
5898                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5899                        OSA_ADDR_LEN);
5900                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5901                            "successfully registered on device %s\n",
5902                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5903                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5904                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5905                            card->dev->name);
5906         }
5907         return 0;
5908 }
5909
5910 static int
5911 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5912 {
5913         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5914         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5915                                           qeth_layer2_send_setmac_cb);
5916 }
5917
5918 static int
5919 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5920                            struct qeth_reply *reply,
5921                            unsigned long data)
5922 {
5923         struct qeth_ipa_cmd *cmd;
5924
5925         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5926         cmd = (struct qeth_ipa_cmd *) data;
5927         if (cmd->hdr.return_code) {
5928                 PRINT_WARN("Error in deregistering MAC address on " \
5929                            "device %s: x%x\n", CARD_BUS_ID(card),
5930                            cmd->hdr.return_code);
5931                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5932                 cmd->hdr.return_code = -EIO;
5933                 return 0;
5934         }
5935         card->info.layer2_mac_registered = 0;
5936
5937         return 0;
5938 }
5939 static int
5940 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5941 {
5942         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5943         if (!card->info.layer2_mac_registered)
5944                 return 0;
5945         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5946                                           qeth_layer2_send_delmac_cb);
5947 }
5948
5949 static int
5950 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5951 {
5952         struct sockaddr *addr = p;
5953         struct qeth_card *card;
5954         int rc = 0;
5955
5956         QETH_DBF_TEXT(trace, 3, "setmac");
5957
5958         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5959                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5960                 return -EOPNOTSUPP;
5961         }
5962         card = (struct qeth_card *) dev->priv;
5963
5964         if (!card->options.layer2) {
5965                 PRINT_WARN("Setting MAC address on %s is not supported"
5966                            "in Layer 3 mode.\n", dev->name);
5967                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5968                 return -EOPNOTSUPP;
5969         }
5970         if (card->info.type == QETH_CARD_TYPE_OSN) {
5971                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5972                            dev->name);
5973                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5974                 return -EOPNOTSUPP;
5975         }
5976         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5977         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5978         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5979         if (!rc)
5980                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5981         return rc;
5982 }
5983
5984 static void
5985 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5986                         __u8 command, enum qeth_prot_versions prot)
5987 {
5988         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5989         cmd->hdr.command = command;
5990         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5991         cmd->hdr.seqno = card->seqno.ipa;
5992         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5993         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5994         if (card->options.layer2)
5995                 cmd->hdr.prim_version_no = 2;
5996         else
5997                 cmd->hdr.prim_version_no = 1;
5998         cmd->hdr.param_count = 1;
5999         cmd->hdr.prot_version = prot;
6000         cmd->hdr.ipa_supported = 0;
6001         cmd->hdr.ipa_enabled = 0;
6002 }
6003
6004 static struct qeth_cmd_buffer *
6005 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6006                        enum qeth_prot_versions prot)
6007 {
6008         struct qeth_cmd_buffer *iob;
6009         struct qeth_ipa_cmd *cmd;
6010
6011         iob = qeth_wait_for_buffer(&card->write);
6012         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6013         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6014
6015         return iob;
6016 }
6017
6018 static int
6019 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6020 {
6021         int rc;
6022         struct qeth_cmd_buffer *iob;
6023         struct qeth_ipa_cmd *cmd;
6024
6025         QETH_DBF_TEXT(trace,4,"setdelmc");
6026
6027         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6028         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6029         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6030         if (addr->proto == QETH_PROT_IPV6)
6031                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6032                        sizeof(struct in6_addr));
6033         else
6034                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6035
6036         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6037
6038         return rc;
6039 }
6040 static inline void
6041 qeth_fill_netmask(u8 *netmask, unsigned int len)
6042 {
6043         int i,j;
6044         for (i=0;i<16;i++) {
6045                 j=(len)-(i*8);
6046                 if (j >= 8)
6047                         netmask[i] = 0xff;
6048                 else if (j > 0)
6049                         netmask[i] = (u8)(0xFF00>>j);
6050                 else
6051                         netmask[i] = 0;
6052         }
6053 }
6054
6055 static int
6056 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6057                    int ipacmd, unsigned int flags)
6058 {
6059         int rc;
6060         struct qeth_cmd_buffer *iob;
6061         struct qeth_ipa_cmd *cmd;
6062         __u8 netmask[16];
6063
6064         QETH_DBF_TEXT(trace,4,"setdelip");
6065         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6066
6067         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6068         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6069         if (addr->proto == QETH_PROT_IPV6) {
6070                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6071                        sizeof(struct in6_addr));
6072                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6073                 memcpy(cmd->data.setdelip6.mask, netmask,
6074                        sizeof(struct in6_addr));
6075                 cmd->data.setdelip6.flags = flags;
6076         } else {
6077                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6078                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6079                 cmd->data.setdelip4.flags = flags;
6080         }
6081
6082         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6083
6084         return rc;
6085 }
6086
6087 static int
6088 qeth_layer2_register_addr_entry(struct qeth_card *card,
6089                                 struct qeth_ipaddr *addr)
6090 {
6091         if (!addr->is_multicast)
6092                 return 0;
6093         QETH_DBF_TEXT(trace, 2, "setgmac");
6094         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6095         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6096 }
6097
6098 static int
6099 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6100                                   struct qeth_ipaddr *addr)
6101 {
6102         if (!addr->is_multicast)
6103                 return 0;
6104         QETH_DBF_TEXT(trace, 2, "delgmac");
6105         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6106         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6107 }
6108
6109 static int
6110 qeth_layer3_register_addr_entry(struct qeth_card *card,
6111                                 struct qeth_ipaddr *addr)
6112 {
6113         char buf[50];
6114         int rc;
6115         int cnt = 3;
6116
6117         if (addr->proto == QETH_PROT_IPV4) {
6118                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6119                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6120         } else if (addr->proto == QETH_PROT_IPV6) {
6121                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6122                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6123                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6124         } else {
6125                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6126                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6127         }
6128         do {
6129                 if (addr->is_multicast)
6130                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6131                 else
6132                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6133                                         addr->set_flags);
6134                 if (rc)
6135                         QETH_DBF_TEXT(trace, 2, "failed");
6136         } while ((--cnt > 0) && rc);
6137         if (rc){
6138                 QETH_DBF_TEXT(trace, 2, "FAILED");
6139                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6140                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6141                            buf, rc, rc);
6142         }
6143         return rc;
6144 }
6145
6146 static int
6147 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6148                                   struct qeth_ipaddr *addr)
6149 {
6150         //char buf[50];
6151         int rc;
6152
6153         if (addr->proto == QETH_PROT_IPV4) {
6154                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6155                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6156         } else if (addr->proto == QETH_PROT_IPV6) {
6157                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6158                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6159                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6160         } else {
6161                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6162                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6163         }
6164         if (addr->is_multicast)
6165                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6166         else
6167                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6168                                         addr->del_flags);
6169         if (rc) {
6170                 QETH_DBF_TEXT(trace, 2, "failed");
6171                 /* TODO: re-activate this warning as soon as we have a
6172                  * clean mirco code
6173                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6174                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6175                            buf, rc);
6176                 */
6177         }
6178         return rc;
6179 }
6180
6181 static int
6182 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6183 {
6184         if (card->options.layer2)
6185                 return qeth_layer2_register_addr_entry(card, addr);
6186
6187         return qeth_layer3_register_addr_entry(card, addr);
6188 }
6189
6190 static int
6191 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6192 {
6193         if (card->options.layer2)
6194                 return qeth_layer2_deregister_addr_entry(card, addr);
6195
6196         return qeth_layer3_deregister_addr_entry(card, addr);
6197 }
6198
6199 static u32
6200 qeth_ethtool_get_tx_csum(struct net_device *dev)
6201 {
6202         /* We may need to say that we support tx csum offload if
6203          * we do EDDP or TSO. There are discussions going on to
6204          * enforce rules in the stack and in ethtool that make
6205          * SG and TSO depend on HW_CSUM. At the moment there are
6206          * no such rules....
6207          * If we say yes here, we have to checksum outbound packets
6208          * any time. */
6209         return 0;
6210 }
6211
6212 static int
6213 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6214 {
6215         return -EINVAL;
6216 }
6217
6218 static u32
6219 qeth_ethtool_get_rx_csum(struct net_device *dev)
6220 {
6221         struct qeth_card *card = (struct qeth_card *)dev->priv;
6222
6223         return (card->options.checksum_type == HW_CHECKSUMMING);
6224 }
6225
6226 static int
6227 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6228 {
6229         struct qeth_card *card = (struct qeth_card *)dev->priv;
6230
6231         if ((card->state != CARD_STATE_DOWN) &&
6232             (card->state != CARD_STATE_RECOVER))
6233                 return -EPERM;
6234         if (data)
6235                 card->options.checksum_type = HW_CHECKSUMMING;
6236         else
6237                 card->options.checksum_type = SW_CHECKSUMMING;
6238         return 0;
6239 }
6240
6241 static u32
6242 qeth_ethtool_get_sg(struct net_device *dev)
6243 {
6244         struct qeth_card *card = (struct qeth_card *)dev->priv;
6245
6246         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6247                 (dev->features & NETIF_F_SG));
6248 }
6249
6250 static int
6251 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6252 {
6253         struct qeth_card *card = (struct qeth_card *)dev->priv;
6254
6255         if (data) {
6256                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6257                         dev->features |= NETIF_F_SG;
6258                 else {
6259                         dev->features &= ~NETIF_F_SG;
6260                         return -EINVAL;
6261                 }
6262         } else
6263                 dev->features &= ~NETIF_F_SG;
6264         return 0;
6265 }
6266
6267 static u32
6268 qeth_ethtool_get_tso(struct net_device *dev)
6269 {
6270         struct qeth_card *card = (struct qeth_card *)dev->priv;
6271
6272         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6273                 (dev->features & NETIF_F_TSO));
6274 }
6275
6276 static int
6277 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6278 {
6279         struct qeth_card *card = (struct qeth_card *)dev->priv;
6280
6281         if (data) {
6282                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6283                         dev->features |= NETIF_F_TSO;
6284                 else {
6285                         dev->features &= ~NETIF_F_TSO;
6286                         return -EINVAL;
6287                 }
6288         } else
6289                 dev->features &= ~NETIF_F_TSO;
6290         return 0;
6291 }
6292
6293 static struct ethtool_ops qeth_ethtool_ops = {
6294         .get_tx_csum = qeth_ethtool_get_tx_csum,
6295         .set_tx_csum = qeth_ethtool_set_tx_csum,
6296         .get_rx_csum = qeth_ethtool_get_rx_csum,
6297         .set_rx_csum = qeth_ethtool_set_rx_csum,
6298         .get_sg      = qeth_ethtool_get_sg,
6299         .set_sg      = qeth_ethtool_set_sg,
6300         .get_tso     = qeth_ethtool_get_tso,
6301         .set_tso     = qeth_ethtool_set_tso,
6302 };
6303
6304 static int
6305 qeth_netdev_init(struct net_device *dev)
6306 {
6307         struct qeth_card *card;
6308
6309         card = (struct qeth_card *) dev->priv;
6310
6311         QETH_DBF_TEXT(trace,3,"initdev");
6312
6313         dev->tx_timeout = &qeth_tx_timeout;
6314         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6315         dev->open = qeth_open;
6316         dev->stop = qeth_stop;
6317         dev->hard_start_xmit = qeth_hard_start_xmit;
6318         dev->do_ioctl = qeth_do_ioctl;
6319         dev->get_stats = qeth_get_stats;
6320         dev->change_mtu = qeth_change_mtu;
6321         dev->neigh_setup = qeth_neigh_setup;
6322         dev->set_multicast_list = qeth_set_multicast_list;
6323 #ifdef CONFIG_QETH_VLAN
6324         dev->vlan_rx_register = qeth_vlan_rx_register;
6325         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6326         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6327 #endif
6328         dev->hard_header = card->orig_hard_header;
6329         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6330                 dev->rebuild_header = NULL;
6331                 dev->hard_header = NULL;
6332                 if (card->options.fake_ll)
6333                         dev->hard_header = qeth_fake_header;
6334                 dev->header_cache_update = NULL;
6335                 dev->hard_header_cache = NULL;
6336         }
6337 #ifdef CONFIG_QETH_IPV6
6338         /*IPv6 address autoconfiguration stuff*/
6339         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6340                 card->dev->dev_id = card->info.unique_id & 0xffff;
6341 #endif
6342         dev->hard_header_parse = NULL;
6343         dev->set_mac_address = qeth_layer2_set_mac_address;
6344         dev->flags |= qeth_get_netdev_flags(card);
6345         if ((card->options.fake_broadcast) ||
6346             (card->info.broadcast_capable))
6347                 dev->flags |= IFF_BROADCAST;
6348         dev->hard_header_len =
6349                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6350         dev->addr_len = OSA_ADDR_LEN;
6351         dev->mtu = card->info.initial_mtu;
6352         if (card->info.type != QETH_CARD_TYPE_OSN)
6353                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6354         SET_MODULE_OWNER(dev);
6355         return 0;
6356 }
6357
6358 static void
6359 qeth_init_func_level(struct qeth_card *card)
6360 {
6361         if (card->ipato.enabled) {
6362                 if (card->info.type == QETH_CARD_TYPE_IQD)
6363                                 card->info.func_level =
6364                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6365                 else
6366                                 card->info.func_level =
6367                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6368         } else {
6369                 if (card->info.type == QETH_CARD_TYPE_IQD)
6370                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6371                         card->info.func_level =
6372                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6373                 else
6374                         card->info.func_level =
6375                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6376         }
6377 }
6378
6379 /**
6380  * hardsetup card, initialize MPC and QDIO stuff
6381  */
6382 static int
6383 qeth_hardsetup_card(struct qeth_card *card)
6384 {
6385         int retries = 3;
6386         int rc;
6387
6388         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6389
6390 retry:
6391         if (retries < 3){
6392                 PRINT_WARN("Retrying to do IDX activates.\n");
6393                 ccw_device_set_offline(CARD_DDEV(card));
6394                 ccw_device_set_offline(CARD_WDEV(card));
6395                 ccw_device_set_offline(CARD_RDEV(card));
6396                 ccw_device_set_online(CARD_RDEV(card));
6397                 ccw_device_set_online(CARD_WDEV(card));
6398                 ccw_device_set_online(CARD_DDEV(card));
6399         }
6400         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6401         if (rc == -ERESTARTSYS) {
6402                 QETH_DBF_TEXT(setup, 2, "break1");
6403                 return rc;
6404         } else if (rc) {
6405                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6406                 if (--retries < 0)
6407                         goto out;
6408                 else
6409                         goto retry;
6410         }
6411         if ((rc = qeth_get_unitaddr(card))){
6412                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6413                 return rc;
6414         }
6415         qeth_init_tokens(card);
6416         qeth_init_func_level(card);
6417         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6418         if (rc == -ERESTARTSYS) {
6419                 QETH_DBF_TEXT(setup, 2, "break2");
6420                 return rc;
6421         } else if (rc) {
6422                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6423                 if (--retries < 0)
6424                         goto out;
6425                 else
6426                         goto retry;
6427         }
6428         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6429         if (rc == -ERESTARTSYS) {
6430                 QETH_DBF_TEXT(setup, 2, "break3");
6431                 return rc;
6432         } else if (rc) {
6433                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6434                 if (--retries < 0)
6435                         goto out;
6436                 else
6437                         goto retry;
6438         }
6439         if ((rc = qeth_mpc_initialize(card))){
6440                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6441                 goto out;
6442         }
6443         /*network device will be recovered*/
6444         if (card->dev) {
6445                 card->dev->hard_header = card->orig_hard_header;
6446                 return 0;
6447         }
6448         /* at first set_online allocate netdev */
6449         card->dev = qeth_get_netdevice(card->info.type,
6450                                        card->info.link_type);
6451         if (!card->dev){
6452                 qeth_qdio_clear_card(card, card->info.type !=
6453                                      QETH_CARD_TYPE_IQD);
6454                 rc = -ENODEV;
6455                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6456                 goto out;
6457         }
6458         card->dev->priv = card;
6459         card->orig_hard_header = card->dev->hard_header;
6460         card->dev->type = qeth_get_arphdr_type(card->info.type,
6461                                                card->info.link_type);
6462         card->dev->init = qeth_netdev_init;
6463         return 0;
6464 out:
6465         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6466         return rc;
6467 }
6468
6469 static int
6470 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6471                             unsigned long data)
6472 {
6473         struct qeth_ipa_cmd *cmd;
6474
6475         QETH_DBF_TEXT(trace,4,"defadpcb");
6476
6477         cmd = (struct qeth_ipa_cmd *) data;
6478         if (cmd->hdr.return_code == 0){
6479                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6480                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6481                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6482 #ifdef CONFIG_QETH_IPV6
6483                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6484                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6485 #endif
6486         }
6487         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6488             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6489                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6490                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6491         }
6492         return 0;
6493 }
6494
6495 static int
6496 qeth_default_setadapterparms_cb(struct qeth_card *card,
6497                                 struct qeth_reply *reply,
6498                                 unsigned long data)
6499 {
6500         struct qeth_ipa_cmd *cmd;
6501
6502         QETH_DBF_TEXT(trace,4,"defadpcb");
6503
6504         cmd = (struct qeth_ipa_cmd *) data;
6505         if (cmd->hdr.return_code == 0)
6506                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6507         return 0;
6508 }
6509
6510 static int
6511 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6512                               unsigned long data)
6513 {
6514         struct qeth_ipa_cmd *cmd;
6515
6516         QETH_DBF_TEXT(trace,3,"quyadpcb");
6517
6518         cmd = (struct qeth_ipa_cmd *) data;
6519         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6520                 card->info.link_type =
6521                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6522         card->options.adp.supported_funcs =
6523                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6524         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6525 }
6526
6527 static int
6528 qeth_query_setadapterparms(struct qeth_card *card)
6529 {
6530         int rc;
6531         struct qeth_cmd_buffer *iob;
6532
6533         QETH_DBF_TEXT(trace,3,"queryadp");
6534         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6535                                    sizeof(struct qeth_ipacmd_setadpparms));
6536         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6537         return rc;
6538 }
6539
6540 static int
6541 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6542                                    struct qeth_reply *reply,
6543                                    unsigned long data)
6544 {
6545         struct qeth_ipa_cmd *cmd;
6546
6547         QETH_DBF_TEXT(trace,4,"chgmaccb");
6548
6549         cmd = (struct qeth_ipa_cmd *) data;
6550         memcpy(card->dev->dev_addr,
6551                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
6552         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6553         return 0;
6554 }
6555
6556 static int
6557 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6558 {
6559         int rc;
6560         struct qeth_cmd_buffer *iob;
6561         struct qeth_ipa_cmd *cmd;
6562
6563         QETH_DBF_TEXT(trace,4,"chgmac");
6564
6565         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6566                                    sizeof(struct qeth_ipacmd_setadpparms));
6567         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6568         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6569         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6570         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6571                card->dev->dev_addr, OSA_ADDR_LEN);
6572         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6573                                NULL);
6574         return rc;
6575 }
6576
6577 static int
6578 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6579 {
6580         int rc;
6581         struct qeth_cmd_buffer *iob;
6582         struct qeth_ipa_cmd *cmd;
6583
6584         QETH_DBF_TEXT(trace,4,"adpmode");
6585
6586         iob = qeth_get_adapter_cmd(card, command,
6587                                    sizeof(struct qeth_ipacmd_setadpparms));
6588         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6589         cmd->data.setadapterparms.data.mode = mode;
6590         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6591                                NULL);
6592         return rc;
6593 }
6594
6595 static inline int
6596 qeth_setadapter_hstr(struct qeth_card *card)
6597 {
6598         int rc;
6599
6600         QETH_DBF_TEXT(trace,4,"adphstr");
6601
6602         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6603                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6604                                            card->options.broadcast_mode);
6605                 if (rc)
6606                         PRINT_WARN("couldn't set broadcast mode on "
6607                                    "device %s: x%x\n",
6608                                    CARD_BUS_ID(card), rc);
6609                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6610                                            card->options.macaddr_mode);
6611                 if (rc)
6612                         PRINT_WARN("couldn't set macaddr mode on "
6613                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6614                 return rc;
6615         }
6616         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6617                 PRINT_WARN("set adapter parameters not available "
6618                            "to set broadcast mode, using ALLRINGS "
6619                            "on device %s:\n", CARD_BUS_ID(card));
6620         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6621                 PRINT_WARN("set adapter parameters not available "
6622                            "to set macaddr mode, using NONCANONICAL "
6623                            "on device %s:\n", CARD_BUS_ID(card));
6624         return 0;
6625 }
6626
6627 static int
6628 qeth_setadapter_parms(struct qeth_card *card)
6629 {
6630         int rc;
6631
6632         QETH_DBF_TEXT(setup, 2, "setadprm");
6633
6634         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6635                 PRINT_WARN("set adapter parameters not supported "
6636                            "on device %s.\n",
6637                            CARD_BUS_ID(card));
6638                 QETH_DBF_TEXT(setup, 2, " notsupp");
6639                 return 0;
6640         }
6641         rc = qeth_query_setadapterparms(card);
6642         if (rc) {
6643                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6644                            "x%x\n", CARD_BUS_ID(card), rc);
6645                 return rc;
6646         }
6647         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6648                 rc = qeth_setadpparms_change_macaddr(card);
6649                 if (rc)
6650                         PRINT_WARN("couldn't get MAC address on "
6651                                    "device %s: x%x\n",
6652                                    CARD_BUS_ID(card), rc);
6653         }
6654
6655         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6656             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6657                 rc = qeth_setadapter_hstr(card);
6658
6659         return rc;
6660 }
6661
6662 static int
6663 qeth_layer2_initialize(struct qeth_card *card)
6664 {
6665         int rc = 0;
6666
6667
6668         QETH_DBF_TEXT(setup, 2, "doL2init");
6669         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6670
6671         rc = qeth_setadpparms_change_macaddr(card);
6672         if (rc) {
6673                 PRINT_WARN("couldn't get MAC address on "
6674                            "device %s: x%x\n",
6675                            CARD_BUS_ID(card), rc);
6676                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6677                 return rc;
6678         }
6679         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6680
6681         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6682         if (rc)
6683                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6684         return 0;
6685 }
6686
6687
6688 static int
6689 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6690                        enum qeth_prot_versions prot)
6691 {
6692         int rc;
6693         struct qeth_cmd_buffer *iob;
6694
6695         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6696         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6697
6698         return rc;
6699 }
6700
6701 static int
6702 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6703 {
6704         int rc;
6705
6706         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6707
6708         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6709         return rc;
6710 }
6711
6712 static int
6713 qeth_send_stoplan(struct qeth_card *card)
6714 {
6715         int rc = 0;
6716
6717         /*
6718          * TODO: according to the IPA format document page 14,
6719          * TCP/IP (we!) never issue a STOPLAN
6720          * is this right ?!?
6721          */
6722         QETH_DBF_TEXT(trace, 2, "stoplan");
6723
6724         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6725         return rc;
6726 }
6727
6728 static int
6729 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6730                         unsigned long data)
6731 {
6732         struct qeth_ipa_cmd *cmd;
6733
6734         QETH_DBF_TEXT(setup, 2, "qipasscb");
6735
6736         cmd = (struct qeth_ipa_cmd *) data;
6737         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6738                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6739                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6740                 /* Disable IPV6 support hard coded for Hipersockets */
6741                 if(card->info.type == QETH_CARD_TYPE_IQD)
6742                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6743         } else {
6744 #ifdef CONFIG_QETH_IPV6
6745                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6746                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6747 #endif
6748         }
6749         QETH_DBF_TEXT(setup, 2, "suppenbl");
6750         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6751         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6752         return 0;
6753 }
6754
6755 static int
6756 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6757 {
6758         int rc;
6759         struct qeth_cmd_buffer *iob;
6760
6761         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6762         if (card->options.layer2) {
6763                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6764                 return -EPERM;
6765         }
6766
6767         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6768         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6769         return rc;
6770 }
6771
6772 static struct qeth_cmd_buffer *
6773 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6774                          __u16 cmd_code, __u16 len,
6775                          enum qeth_prot_versions prot)
6776 {
6777         struct qeth_cmd_buffer *iob;
6778         struct qeth_ipa_cmd *cmd;
6779
6780         QETH_DBF_TEXT(trace,4,"getasscm");
6781         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6782
6783         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6784         cmd->data.setassparms.hdr.assist_no = ipa_func;
6785         cmd->data.setassparms.hdr.length = 8 + len;
6786         cmd->data.setassparms.hdr.command_code = cmd_code;
6787         cmd->data.setassparms.hdr.return_code = 0;
6788         cmd->data.setassparms.hdr.seq_no = 0;
6789
6790         return iob;
6791 }
6792
6793 static int
6794 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6795                       __u16 len, long data,
6796                       int (*reply_cb)
6797                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6798                       void *reply_param)
6799 {
6800         int rc;
6801         struct qeth_ipa_cmd *cmd;
6802
6803         QETH_DBF_TEXT(trace,4,"sendassp");
6804
6805         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6806         if (len <= sizeof(__u32))
6807                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6808         else if (len > sizeof(__u32))
6809                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6810
6811         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6812         return rc;
6813 }
6814
6815 #ifdef CONFIG_QETH_IPV6
6816 static int
6817 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6818                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6819
6820 {
6821         int rc;
6822         struct qeth_cmd_buffer *iob;
6823
6824         QETH_DBF_TEXT(trace,4,"simassp6");
6825         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6826                                        0, QETH_PROT_IPV6);
6827         rc = qeth_send_setassparms(card, iob, 0, 0,
6828                                    qeth_default_setassparms_cb, NULL);
6829         return rc;
6830 }
6831 #endif
6832
6833 static int
6834 qeth_send_simple_setassparms(struct qeth_card *card,
6835                              enum qeth_ipa_funcs ipa_func,
6836                              __u16 cmd_code, long data)
6837 {
6838         int rc;
6839         int length = 0;
6840         struct qeth_cmd_buffer *iob;
6841
6842         QETH_DBF_TEXT(trace,4,"simassp4");
6843         if (data)
6844                 length = sizeof(__u32);
6845         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6846                                        length, QETH_PROT_IPV4);
6847         rc = qeth_send_setassparms(card, iob, length, data,
6848                                    qeth_default_setassparms_cb, NULL);
6849         return rc;
6850 }
6851
6852 static inline int
6853 qeth_start_ipa_arp_processing(struct qeth_card *card)
6854 {
6855         int rc;
6856
6857         QETH_DBF_TEXT(trace,3,"ipaarp");
6858
6859         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6860                 PRINT_WARN("ARP processing not supported "
6861                            "on %s!\n", QETH_CARD_IFNAME(card));
6862                 return 0;
6863         }
6864         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6865                                           IPA_CMD_ASS_START, 0);
6866         if (rc) {
6867                 PRINT_WARN("Could not start ARP processing "
6868                            "assist on %s: 0x%x\n",
6869                            QETH_CARD_IFNAME(card), rc);
6870         }
6871         return rc;
6872 }
6873
6874 static int
6875 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6876 {
6877         int rc;
6878
6879         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6880
6881         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6882                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6883                            QETH_CARD_IFNAME(card));
6884                 return  -EOPNOTSUPP;
6885         }
6886
6887         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6888                                           IPA_CMD_ASS_START, 0);
6889         if (rc) {
6890                 PRINT_WARN("Could not start Hardware IP fragmentation "
6891                            "assist on %s: 0x%x\n",
6892                            QETH_CARD_IFNAME(card), rc);
6893         } else
6894                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6895         return rc;
6896 }
6897
6898 static int
6899 qeth_start_ipa_source_mac(struct qeth_card *card)
6900 {
6901         int rc;
6902
6903         QETH_DBF_TEXT(trace,3,"stsrcmac");
6904
6905         if (!card->options.fake_ll)
6906                 return -EOPNOTSUPP;
6907
6908         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6909                 PRINT_INFO("Inbound source address not "
6910                            "supported on %s\n", QETH_CARD_IFNAME(card));
6911                 return -EOPNOTSUPP;
6912         }
6913
6914         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6915                                           IPA_CMD_ASS_START, 0);
6916         if (rc)
6917                 PRINT_WARN("Could not start inbound source "
6918                            "assist on %s: 0x%x\n",
6919                            QETH_CARD_IFNAME(card), rc);
6920         return rc;
6921 }
6922
6923 static int
6924 qeth_start_ipa_vlan(struct qeth_card *card)
6925 {
6926         int rc = 0;
6927
6928         QETH_DBF_TEXT(trace,3,"strtvlan");
6929
6930 #ifdef CONFIG_QETH_VLAN
6931         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6932                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6933                 return -EOPNOTSUPP;
6934         }
6935
6936         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6937                                           IPA_CMD_ASS_START,0);
6938         if (rc) {
6939                 PRINT_WARN("Could not start vlan "
6940                            "assist on %s: 0x%x\n",
6941                            QETH_CARD_IFNAME(card), rc);
6942         } else {
6943                 PRINT_INFO("VLAN enabled \n");
6944                 card->dev->features |=
6945                         NETIF_F_HW_VLAN_FILTER |
6946                         NETIF_F_HW_VLAN_TX |
6947                         NETIF_F_HW_VLAN_RX;
6948         }
6949 #endif /* QETH_VLAN */
6950         return rc;
6951 }
6952
6953 static int
6954 qeth_start_ipa_multicast(struct qeth_card *card)
6955 {
6956         int rc;
6957
6958         QETH_DBF_TEXT(trace,3,"stmcast");
6959
6960         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6961                 PRINT_WARN("Multicast not supported on %s\n",
6962                            QETH_CARD_IFNAME(card));
6963                 return -EOPNOTSUPP;
6964         }
6965
6966         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6967                                           IPA_CMD_ASS_START,0);
6968         if (rc) {
6969                 PRINT_WARN("Could not start multicast "
6970                            "assist on %s: rc=%i\n",
6971                            QETH_CARD_IFNAME(card), rc);
6972         } else {
6973                 PRINT_INFO("Multicast enabled\n");
6974                 card->dev->flags |= IFF_MULTICAST;
6975         }
6976         return rc;
6977 }
6978
6979 #ifdef CONFIG_QETH_IPV6
6980 static int
6981 qeth_softsetup_ipv6(struct qeth_card *card)
6982 {
6983         int rc;
6984
6985         QETH_DBF_TEXT(trace,3,"softipv6");
6986
6987         netif_stop_queue(card->dev);
6988         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6989         if (rc) {
6990                 PRINT_ERR("IPv6 startlan failed on %s\n",
6991                           QETH_CARD_IFNAME(card));
6992                 return rc;
6993         }
6994         netif_wake_queue(card->dev);
6995         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6996         if (rc) {
6997                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
6998                           QETH_CARD_IFNAME(card));
6999                 return rc;
7000         }
7001         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7002                                           IPA_CMD_ASS_START, 3);
7003         if (rc) {
7004                 PRINT_WARN("IPv6 start assist (version 4) failed "
7005                            "on %s: 0x%x\n",
7006                            QETH_CARD_IFNAME(card), rc);
7007                 return rc;
7008         }
7009         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7010                                                IPA_CMD_ASS_START);
7011         if (rc) {
7012                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7013                            "on %s: 0x%x\n",
7014                            QETH_CARD_IFNAME(card), rc);
7015                 return rc;
7016         }
7017         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7018                                                IPA_CMD_ASS_START);
7019         if (rc) {
7020                 PRINT_WARN("Could not enable passthrough "
7021                            "on %s: 0x%x\n",
7022                            QETH_CARD_IFNAME(card), rc);
7023                 return rc;
7024         }
7025         PRINT_INFO("IPV6 enabled \n");
7026         return 0;
7027 }
7028
7029 #endif
7030
7031 static int
7032 qeth_start_ipa_ipv6(struct qeth_card *card)
7033 {
7034         int rc = 0;
7035 #ifdef CONFIG_QETH_IPV6
7036         QETH_DBF_TEXT(trace,3,"strtipv6");
7037
7038         if (!qeth_is_supported(card, IPA_IPV6)) {
7039                 PRINT_WARN("IPv6 not supported on %s\n",
7040                            QETH_CARD_IFNAME(card));
7041                 return 0;
7042         }
7043         rc = qeth_softsetup_ipv6(card);
7044 #endif
7045         return rc ;
7046 }
7047
7048 static int
7049 qeth_start_ipa_broadcast(struct qeth_card *card)
7050 {
7051         int rc;
7052
7053         QETH_DBF_TEXT(trace,3,"stbrdcst");
7054         card->info.broadcast_capable = 0;
7055         if (!qeth_is_supported(card, IPA_FILTERING)) {
7056                 PRINT_WARN("Broadcast not supported on %s\n",
7057                            QETH_CARD_IFNAME(card));
7058                 rc = -EOPNOTSUPP;
7059                 goto out;
7060         }
7061         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7062                                           IPA_CMD_ASS_START, 0);
7063         if (rc) {
7064                 PRINT_WARN("Could not enable broadcasting filtering "
7065                            "on %s: 0x%x\n",
7066                            QETH_CARD_IFNAME(card), rc);
7067                 goto out;
7068         }
7069
7070         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7071                                           IPA_CMD_ASS_CONFIGURE, 1);
7072         if (rc) {
7073                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7074                            QETH_CARD_IFNAME(card), rc);
7075                 goto out;
7076         }
7077         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7078         PRINT_INFO("Broadcast enabled \n");
7079         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7080                                           IPA_CMD_ASS_ENABLE, 1);
7081         if (rc) {
7082                 PRINT_WARN("Could not set up broadcast echo filtering on "
7083                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7084                 goto out;
7085         }
7086         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7087 out:
7088         if (card->info.broadcast_capable)
7089                 card->dev->flags |= IFF_BROADCAST;
7090         else
7091                 card->dev->flags &= ~IFF_BROADCAST;
7092         return rc;
7093 }
7094
7095 static int
7096 qeth_send_checksum_command(struct qeth_card *card)
7097 {
7098         int rc;
7099
7100         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7101                                           IPA_CMD_ASS_START, 0);
7102         if (rc) {
7103                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7104                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7105                            QETH_CARD_IFNAME(card), rc);
7106                 return rc;
7107         }
7108         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7109                                           IPA_CMD_ASS_ENABLE,
7110                                           card->info.csum_mask);
7111         if (rc) {
7112                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7113                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7114                            QETH_CARD_IFNAME(card), rc);
7115                 return rc;
7116         }
7117         return 0;
7118 }
7119
7120 static int
7121 qeth_start_ipa_checksum(struct qeth_card *card)
7122 {
7123         int rc = 0;
7124
7125         QETH_DBF_TEXT(trace,3,"strtcsum");
7126
7127         if (card->options.checksum_type == NO_CHECKSUMMING) {
7128                 PRINT_WARN("Using no checksumming on %s.\n",
7129                            QETH_CARD_IFNAME(card));
7130                 return 0;
7131         }
7132         if (card->options.checksum_type == SW_CHECKSUMMING) {
7133                 PRINT_WARN("Using SW checksumming on %s.\n",
7134                            QETH_CARD_IFNAME(card));
7135                 return 0;
7136         }
7137         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7138                 PRINT_WARN("Inbound HW Checksumming not "
7139                            "supported on %s,\ncontinuing "
7140                            "using Inbound SW Checksumming\n",
7141                            QETH_CARD_IFNAME(card));
7142                 card->options.checksum_type = SW_CHECKSUMMING;
7143                 return 0;
7144         }
7145         rc = qeth_send_checksum_command(card);
7146         if (!rc) {
7147                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7148         }
7149         return rc;
7150 }
7151
7152 static int
7153 qeth_start_ipa_tso(struct qeth_card *card)
7154 {
7155         int rc;
7156
7157         QETH_DBF_TEXT(trace,3,"sttso");
7158
7159         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7160                 PRINT_WARN("Outbound TSO not supported on %s\n",
7161                            QETH_CARD_IFNAME(card));
7162                 rc = -EOPNOTSUPP;
7163         } else {
7164                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7165                                                   IPA_CMD_ASS_START,0);
7166                 if (rc)
7167                         PRINT_WARN("Could not start outbound TSO "
7168                                    "assist on %s: rc=%i\n",
7169                                    QETH_CARD_IFNAME(card), rc);
7170                 else
7171                         PRINT_INFO("Outbound TSO enabled\n");
7172         }
7173         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7174                 card->options.large_send = QETH_LARGE_SEND_NO;
7175                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7176         }
7177         return rc;
7178 }
7179
7180 static int
7181 qeth_start_ipassists(struct qeth_card *card)
7182 {
7183         QETH_DBF_TEXT(trace,3,"strtipas");
7184         qeth_start_ipa_arp_processing(card);    /* go on*/
7185         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7186         qeth_start_ipa_source_mac(card);        /* go on*/
7187         qeth_start_ipa_vlan(card);              /* go on*/
7188         qeth_start_ipa_multicast(card);         /* go on*/
7189         qeth_start_ipa_ipv6(card);              /* go on*/
7190         qeth_start_ipa_broadcast(card);         /* go on*/
7191         qeth_start_ipa_checksum(card);          /* go on*/
7192         qeth_start_ipa_tso(card);               /* go on*/
7193         return 0;
7194 }
7195
7196 static int
7197 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7198                      enum qeth_prot_versions prot)
7199 {
7200         int rc;
7201         struct qeth_ipa_cmd *cmd;
7202         struct qeth_cmd_buffer *iob;
7203
7204         QETH_DBF_TEXT(trace,4,"setroutg");
7205         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7206         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7207         cmd->data.setrtg.type = (type);
7208         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7209
7210         return rc;
7211
7212 }
7213
7214 static void
7215 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7216                         enum qeth_prot_versions prot)
7217 {
7218         if (card->info.type == QETH_CARD_TYPE_IQD) {
7219                 switch (*type) {
7220                 case NO_ROUTER:
7221                 case PRIMARY_CONNECTOR:
7222                 case SECONDARY_CONNECTOR:
7223                 case MULTICAST_ROUTER:
7224                         return;
7225                 default:
7226                         goto out_inval;
7227                 }
7228         } else {
7229                 switch (*type) {
7230                 case NO_ROUTER:
7231                 case PRIMARY_ROUTER:
7232                 case SECONDARY_ROUTER:
7233                         return;
7234                 case MULTICAST_ROUTER:
7235                         if (qeth_is_ipafunc_supported(card, prot,
7236                                                       IPA_OSA_MC_ROUTER))
7237                                 return;
7238                 default:
7239                         goto out_inval;
7240                 }
7241         }
7242 out_inval:
7243         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7244                    "Router status set to 'no router'.\n",
7245                    ((*type == PRIMARY_ROUTER)? "primary router" :
7246                     (*type == SECONDARY_ROUTER)? "secondary router" :
7247                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7248                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7249                     (*type == MULTICAST_ROUTER)? "multicast router" :
7250                     "unknown"),
7251                    card->dev->name);
7252         *type = NO_ROUTER;
7253 }
7254
7255 int
7256 qeth_setrouting_v4(struct qeth_card *card)
7257 {
7258         int rc;
7259
7260         QETH_DBF_TEXT(trace,3,"setrtg4");
7261
7262         qeth_correct_routing_type(card, &card->options.route4.type,
7263                                   QETH_PROT_IPV4);
7264
7265         rc = qeth_send_setrouting(card, card->options.route4.type,
7266                                   QETH_PROT_IPV4);
7267         if (rc) {
7268                 card->options.route4.type = NO_ROUTER;
7269                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7270                            "Type set to 'no router'.\n",
7271                            rc, QETH_CARD_IFNAME(card));
7272         }
7273         return rc;
7274 }
7275
7276 int
7277 qeth_setrouting_v6(struct qeth_card *card)
7278 {
7279         int rc = 0;
7280
7281         QETH_DBF_TEXT(trace,3,"setrtg6");
7282 #ifdef CONFIG_QETH_IPV6
7283
7284         qeth_correct_routing_type(card, &card->options.route6.type,
7285                                   QETH_PROT_IPV6);
7286
7287         if ((card->options.route6.type == NO_ROUTER) ||
7288             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7289              (card->options.route6.type == MULTICAST_ROUTER) &&
7290              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7291                 return 0;
7292         rc = qeth_send_setrouting(card, card->options.route6.type,
7293                                   QETH_PROT_IPV6);
7294         if (rc) {
7295                 card->options.route6.type = NO_ROUTER;
7296                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7297                            "Type set to 'no router'.\n",
7298                            rc, QETH_CARD_IFNAME(card));
7299         }
7300 #endif
7301         return rc;
7302 }
7303
7304 int
7305 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7306 {
7307         int rc = 0;
7308
7309         if (card->dev == NULL) {
7310                 card->options.large_send = type;
7311                 return 0;
7312         }
7313         netif_stop_queue(card->dev);
7314         card->options.large_send = type;
7315         switch (card->options.large_send) {
7316         case QETH_LARGE_SEND_EDDP:
7317                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7318                 break;
7319         case QETH_LARGE_SEND_TSO:
7320                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7321                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7322                 } else {
7323                         PRINT_WARN("TSO not supported on %s. "
7324                                    "large_send set to 'no'.\n",
7325                                    card->dev->name);
7326                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7327                         card->options.large_send = QETH_LARGE_SEND_NO;
7328                         rc = -EOPNOTSUPP;
7329                 }
7330                 break;
7331         default: /* includes QETH_LARGE_SEND_NO */
7332                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7333                 break;
7334         }
7335         netif_wake_queue(card->dev);
7336         return rc;
7337 }
7338
7339 /*
7340  * softsetup card: init IPA stuff
7341  */
7342 static int
7343 qeth_softsetup_card(struct qeth_card *card)
7344 {
7345         int rc;
7346
7347         QETH_DBF_TEXT(setup, 2, "softsetp");
7348
7349         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7350                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7351                 if (rc == 0xe080){
7352                         PRINT_WARN("LAN on card %s if offline! "
7353                                    "Continuing softsetup.\n",
7354                                    CARD_BUS_ID(card));
7355                         card->lan_online = 0;
7356                 } else
7357                         return rc;
7358         } else
7359                 card->lan_online = 1;
7360         if (card->info.type==QETH_CARD_TYPE_OSN)
7361                 goto out;
7362         if (card->options.layer2) {
7363                 card->dev->features |=
7364                         NETIF_F_HW_VLAN_FILTER |
7365                         NETIF_F_HW_VLAN_TX |
7366                         NETIF_F_HW_VLAN_RX;
7367                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7368                 card->info.broadcast_capable=1;
7369                 if ((rc = qeth_layer2_initialize(card))) {
7370                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7371                         return rc;
7372                 }
7373 #ifdef CONFIG_QETH_VLAN
7374                 qeth_layer2_process_vlans(card, 0);
7375 #endif
7376                 goto out;
7377         }
7378         if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7379             (card->options.large_send == QETH_LARGE_SEND_TSO))
7380                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7381         else
7382                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7383
7384         if ((rc = qeth_setadapter_parms(card)))
7385                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7386         if ((rc = qeth_start_ipassists(card)))
7387                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7388         if ((rc = qeth_setrouting_v4(card)))
7389                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7390         if ((rc = qeth_setrouting_v6(card)))
7391                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7392 out:
7393         netif_stop_queue(card->dev);
7394         return 0;
7395 }
7396
7397 #ifdef CONFIG_QETH_IPV6
7398 static int
7399 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7400                       unsigned long data)
7401 {
7402         struct qeth_ipa_cmd *cmd;
7403
7404         cmd = (struct qeth_ipa_cmd *) data;
7405         if (cmd->hdr.return_code == 0)
7406                 card->info.unique_id = *((__u16 *)
7407                                 &cmd->data.create_destroy_addr.unique_id[6]);
7408         else {
7409                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7410                                         UNIQUE_ID_NOT_BY_CARD;
7411                 PRINT_WARN("couldn't get a unique id from the card on device "
7412                            "%s (result=x%x), using default id. ipv6 "
7413                            "autoconfig on other lpars may lead to duplicate "
7414                            "ip addresses. please use manually "
7415                            "configured ones.\n",
7416                            CARD_BUS_ID(card), cmd->hdr.return_code);
7417         }
7418         return 0;
7419 }
7420 #endif
7421
7422 static int
7423 qeth_put_unique_id(struct qeth_card *card)
7424 {
7425
7426         int rc = 0;
7427 #ifdef CONFIG_QETH_IPV6
7428         struct qeth_cmd_buffer *iob;
7429         struct qeth_ipa_cmd *cmd;
7430
7431         QETH_DBF_TEXT(trace,2,"puniqeid");
7432
7433         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7434                 UNIQUE_ID_NOT_BY_CARD)
7435                 return -1;
7436         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7437                                      QETH_PROT_IPV6);
7438         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7439         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7440                             card->info.unique_id;
7441         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7442                card->dev->dev_addr, OSA_ADDR_LEN);
7443         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7444 #else
7445         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7446                                 UNIQUE_ID_NOT_BY_CARD;
7447 #endif
7448         return rc;
7449 }
7450
7451 /**
7452  * Clear IP List
7453  */
7454 static void
7455 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7456 {
7457         struct qeth_ipaddr *addr, *tmp;
7458         unsigned long flags;
7459
7460         QETH_DBF_TEXT(trace,4,"clearip");
7461         spin_lock_irqsave(&card->ip_lock, flags);
7462         /* clear todo list */
7463         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7464                 list_del(&addr->entry);
7465                 kfree(addr);
7466         }
7467
7468         while (!list_empty(&card->ip_list)) {
7469                 addr = list_entry(card->ip_list.next,
7470                                   struct qeth_ipaddr, entry);
7471                 list_del_init(&addr->entry);
7472                 if (clean) {
7473                         spin_unlock_irqrestore(&card->ip_lock, flags);
7474                         qeth_deregister_addr_entry(card, addr);
7475                         spin_lock_irqsave(&card->ip_lock, flags);
7476                 }
7477                 if (!recover || addr->is_multicast) {
7478                         kfree(addr);
7479                         continue;
7480                 }
7481                 list_add_tail(&addr->entry, card->ip_tbd_list);
7482         }
7483         spin_unlock_irqrestore(&card->ip_lock, flags);
7484 }
7485
7486 static void
7487 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7488                          int clear_start_mask)
7489 {
7490         unsigned long flags;
7491
7492         spin_lock_irqsave(&card->thread_mask_lock, flags);
7493         card->thread_allowed_mask = threads;
7494         if (clear_start_mask)
7495                 card->thread_start_mask &= threads;
7496         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7497         wake_up(&card->wait_q);
7498 }
7499
7500 static inline int
7501 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7502 {
7503         unsigned long flags;
7504         int rc = 0;
7505
7506         spin_lock_irqsave(&card->thread_mask_lock, flags);
7507         rc = (card->thread_running_mask & threads);
7508         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7509         return rc;
7510 }
7511
7512 static int
7513 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7514 {
7515         return wait_event_interruptible(card->wait_q,
7516                         qeth_threads_running(card, threads) == 0);
7517 }
7518
7519 static int
7520 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7521 {
7522         int rc = 0;
7523
7524         QETH_DBF_TEXT(setup ,2,"stopcard");
7525         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7526
7527         qeth_set_allowed_threads(card, 0, 1);
7528         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7529                 return -ERESTARTSYS;
7530         if (card->read.state == CH_STATE_UP &&
7531             card->write.state == CH_STATE_UP &&
7532             (card->state == CARD_STATE_UP)) {
7533                 if (recovery_mode &&
7534                     card->info.type != QETH_CARD_TYPE_OSN) {
7535                         qeth_stop(card->dev);
7536                 } else {
7537                         rtnl_lock();
7538                         dev_close(card->dev);
7539                         rtnl_unlock();
7540                 }
7541                 if (!card->use_hard_stop) {
7542                         __u8 *mac = &card->dev->dev_addr[0];
7543                         rc = qeth_layer2_send_delmac(card, mac);
7544                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7545                         if ((rc = qeth_send_stoplan(card)))
7546                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7547                 }
7548                 card->state = CARD_STATE_SOFTSETUP;
7549         }
7550         if (card->state == CARD_STATE_SOFTSETUP) {
7551 #ifdef CONFIG_QETH_VLAN
7552                 if (card->options.layer2)
7553                         qeth_layer2_process_vlans(card, 1);
7554 #endif
7555                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7556                 qeth_clear_ipacmd_list(card);
7557                 card->state = CARD_STATE_HARDSETUP;
7558         }
7559         if (card->state == CARD_STATE_HARDSETUP) {
7560                 if ((!card->use_hard_stop) &&
7561                     (!card->options.layer2))
7562                         if ((rc = qeth_put_unique_id(card)))
7563                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7564                 qeth_qdio_clear_card(card, 0);
7565                 qeth_clear_qdio_buffers(card);
7566                 qeth_clear_working_pool_list(card);
7567                 card->state = CARD_STATE_DOWN;
7568         }
7569         if (card->state == CARD_STATE_DOWN) {
7570                 qeth_clear_cmd_buffers(&card->read);
7571                 qeth_clear_cmd_buffers(&card->write);
7572         }
7573         card->use_hard_stop = 0;
7574         return rc;
7575 }
7576
7577
7578 static int
7579 qeth_get_unique_id(struct qeth_card *card)
7580 {
7581         int rc = 0;
7582 #ifdef CONFIG_QETH_IPV6
7583         struct qeth_cmd_buffer *iob;
7584         struct qeth_ipa_cmd *cmd;
7585
7586         QETH_DBF_TEXT(setup, 2, "guniqeid");
7587
7588         if (!qeth_is_supported(card,IPA_IPV6)) {
7589                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7590                                         UNIQUE_ID_NOT_BY_CARD;
7591                 return 0;
7592         }
7593
7594         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7595                                      QETH_PROT_IPV6);
7596         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7597         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7598                             card->info.unique_id;
7599
7600         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7601 #else
7602         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7603                                 UNIQUE_ID_NOT_BY_CARD;
7604 #endif
7605         return rc;
7606 }
7607 static void
7608 qeth_print_status_with_portname(struct qeth_card *card)
7609 {
7610         char dbf_text[15];
7611         int i;
7612
7613         sprintf(dbf_text, "%s", card->info.portname + 1);
7614         for (i = 0; i < 8; i++)
7615                 dbf_text[i] =
7616                         (char) _ebcasc[(__u8) dbf_text[i]];
7617         dbf_text[8] = 0;
7618         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7619                "with link type %s (portname: %s)\n",
7620                CARD_RDEV_ID(card),
7621                CARD_WDEV_ID(card),
7622                CARD_DDEV_ID(card),
7623                qeth_get_cardname(card),
7624                (card->info.mcl_level[0]) ? " (level: " : "",
7625                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7626                (card->info.mcl_level[0]) ? ")" : "",
7627                qeth_get_cardname_short(card),
7628                dbf_text);
7629
7630 }
7631
7632 static void
7633 qeth_print_status_no_portname(struct qeth_card *card)
7634 {
7635         if (card->info.portname[0])
7636                 printk("qeth: Device %s/%s/%s is a%s "
7637                        "card%s%s%s\nwith link type %s "
7638                        "(no portname needed by interface).\n",
7639                        CARD_RDEV_ID(card),
7640                        CARD_WDEV_ID(card),
7641                        CARD_DDEV_ID(card),
7642                        qeth_get_cardname(card),
7643                        (card->info.mcl_level[0]) ? " (level: " : "",
7644                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7645                        (card->info.mcl_level[0]) ? ")" : "",
7646                        qeth_get_cardname_short(card));
7647         else
7648                 printk("qeth: Device %s/%s/%s is a%s "
7649                        "card%s%s%s\nwith link type %s.\n",
7650                        CARD_RDEV_ID(card),
7651                        CARD_WDEV_ID(card),
7652                        CARD_DDEV_ID(card),
7653                        qeth_get_cardname(card),
7654                        (card->info.mcl_level[0]) ? " (level: " : "",
7655                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7656                        (card->info.mcl_level[0]) ? ")" : "",
7657                        qeth_get_cardname_short(card));
7658 }
7659
7660 static void
7661 qeth_print_status_message(struct qeth_card *card)
7662 {
7663         switch (card->info.type) {
7664         case QETH_CARD_TYPE_OSAE:
7665                 /* VM will use a non-zero first character
7666                  * to indicate a HiperSockets like reporting
7667                  * of the level OSA sets the first character to zero
7668                  * */
7669                 if (!card->info.mcl_level[0]) {
7670                         sprintf(card->info.mcl_level,"%02x%02x",
7671                                 card->info.mcl_level[2],
7672                                 card->info.mcl_level[3]);
7673
7674                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7675                         break;
7676                 }
7677                 /* fallthrough */
7678         case QETH_CARD_TYPE_IQD:
7679                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7680                         card->info.mcl_level[0]];
7681                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7682                         card->info.mcl_level[1]];
7683                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7684                         card->info.mcl_level[2]];
7685                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7686                         card->info.mcl_level[3]];
7687                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7688                 break;
7689         default:
7690                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7691         }
7692         if (card->info.portname_required)
7693                 qeth_print_status_with_portname(card);
7694         else
7695                 qeth_print_status_no_portname(card);
7696 }
7697
7698 static int
7699 qeth_register_netdev(struct qeth_card *card)
7700 {
7701         QETH_DBF_TEXT(setup, 3, "regnetd");
7702         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7703                 qeth_netdev_init(card->dev);
7704                 return 0;
7705         }
7706         /* sysfs magic */
7707         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7708         return register_netdev(card->dev);
7709 }
7710
7711 static void
7712 qeth_start_again(struct qeth_card *card, int recovery_mode)
7713 {
7714         QETH_DBF_TEXT(setup ,2, "startag");
7715
7716         if (recovery_mode &&
7717             card->info.type != QETH_CARD_TYPE_OSN) {
7718                 qeth_open(card->dev);
7719         } else {
7720                 rtnl_lock();
7721                 dev_open(card->dev);
7722                 rtnl_unlock();
7723         }
7724         /* this also sets saved unicast addresses */
7725         qeth_set_multicast_list(card->dev);
7726 }
7727
7728
7729 /* Layer 2 specific stuff */
7730 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7731         if (card->options.option == value) { \
7732                 PRINT_ERR("%s not supported with layer 2 " \
7733                           "functionality, ignoring option on read" \
7734                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7735                 card->options.option = reset_value; \
7736         }
7737 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7738         if (card->options.option != value) { \
7739                 PRINT_ERR("%s not supported with layer 2 " \
7740                           "functionality, ignoring option on read" \
7741                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7742                 card->options.option = reset_value; \
7743         }
7744
7745
7746 static void qeth_make_parameters_consistent(struct qeth_card *card)
7747 {
7748
7749         if (card->options.layer2 == 0)
7750                 return;
7751         if (card->info.type == QETH_CARD_TYPE_OSN)
7752                 return;
7753         if (card->info.type == QETH_CARD_TYPE_IQD) {
7754                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7755                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7756                 card->options.layer2 = 0;
7757                 return;
7758         }
7759         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7760                          "Routing options are");
7761 #ifdef CONFIG_QETH_IPV6
7762         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7763                          "Routing options are");
7764 #endif
7765         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7766                         QETH_CHECKSUM_DEFAULT,
7767                         "Checksumming options are");
7768         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7769                          QETH_TR_BROADCAST_ALLRINGS,
7770                          "Broadcast mode options are");
7771         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7772                          QETH_TR_MACADDR_NONCANONICAL,
7773                          "Canonical MAC addr options are");
7774         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7775                          "Broadcast faking options are");
7776         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7777                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7778         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7779 }
7780
7781
7782 static int
7783 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7784 {
7785         struct qeth_card *card = gdev->dev.driver_data;
7786         int rc = 0;
7787         enum qeth_card_states recover_flag;
7788
7789         BUG_ON(!card);
7790         QETH_DBF_TEXT(setup ,2, "setonlin");
7791         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7792
7793         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7794         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7795                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7796                            CARD_BUS_ID(card));
7797                 return -ERESTARTSYS;
7798         }
7799
7800         recover_flag = card->state;
7801         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7802             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7803             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7804                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7805                 return -EIO;
7806         }
7807
7808         qeth_make_parameters_consistent(card);
7809
7810         if ((rc = qeth_hardsetup_card(card))){
7811                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7812                 goto out_remove;
7813         }
7814         card->state = CARD_STATE_HARDSETUP;
7815
7816         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7817                 rc = qeth_get_unique_id(card);
7818
7819         if (rc && card->options.layer2 == 0) {
7820                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7821                 goto out_remove;
7822         }
7823         qeth_print_status_message(card);
7824         if ((rc = qeth_register_netdev(card))){
7825                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7826                 goto out_remove;
7827         }
7828         if ((rc = qeth_softsetup_card(card))){
7829                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7830                 goto out_remove;
7831         }
7832         card->state = CARD_STATE_SOFTSETUP;
7833
7834         if ((rc = qeth_init_qdio_queues(card))){
7835                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7836                 goto out_remove;
7837         }
7838 /*maybe it was set offline without ifconfig down
7839  * we can also use this state for recovery purposes*/
7840         qeth_set_allowed_threads(card, 0xffffffff, 0);
7841         if (recover_flag == CARD_STATE_RECOVER)
7842                 qeth_start_again(card, recovery_mode);
7843         qeth_notify_processes();
7844         return 0;
7845 out_remove:
7846         card->use_hard_stop = 1;
7847         qeth_stop_card(card, 0);
7848         ccw_device_set_offline(CARD_DDEV(card));
7849         ccw_device_set_offline(CARD_WDEV(card));
7850         ccw_device_set_offline(CARD_RDEV(card));
7851         if (recover_flag == CARD_STATE_RECOVER)
7852                 card->state = CARD_STATE_RECOVER;
7853         else
7854                 card->state = CARD_STATE_DOWN;
7855         return -ENODEV;
7856 }
7857
7858 static int
7859 qeth_set_online(struct ccwgroup_device *gdev)
7860 {
7861         return __qeth_set_online(gdev, 0);
7862 }
7863
7864 static struct ccw_device_id qeth_ids[] = {
7865         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7866         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7867         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7868         {},
7869 };
7870 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7871
7872 struct device *qeth_root_dev = NULL;
7873
7874 struct ccwgroup_driver qeth_ccwgroup_driver = {
7875         .owner = THIS_MODULE,
7876         .name = "qeth",
7877         .driver_id = 0xD8C5E3C8,
7878         .probe = qeth_probe_device,
7879         .remove = qeth_remove_device,
7880         .set_online = qeth_set_online,
7881         .set_offline = qeth_set_offline,
7882 };
7883
7884 struct ccw_driver qeth_ccw_driver = {
7885         .name = "qeth",
7886         .ids = qeth_ids,
7887         .probe = ccwgroup_probe_ccwdev,
7888         .remove = ccwgroup_remove_ccwdev,
7889 };
7890
7891
7892 static void
7893 qeth_unregister_dbf_views(void)
7894 {
7895         if (qeth_dbf_setup)
7896                 debug_unregister(qeth_dbf_setup);
7897         if (qeth_dbf_qerr)
7898                 debug_unregister(qeth_dbf_qerr);
7899         if (qeth_dbf_sense)
7900                 debug_unregister(qeth_dbf_sense);
7901         if (qeth_dbf_misc)
7902                 debug_unregister(qeth_dbf_misc);
7903         if (qeth_dbf_data)
7904                 debug_unregister(qeth_dbf_data);
7905         if (qeth_dbf_control)
7906                 debug_unregister(qeth_dbf_control);
7907         if (qeth_dbf_trace)
7908                 debug_unregister(qeth_dbf_trace);
7909 }
7910 static int
7911 qeth_register_dbf_views(void)
7912 {
7913         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7914                                         QETH_DBF_SETUP_PAGES,
7915                                         QETH_DBF_SETUP_NR_AREAS,
7916                                         QETH_DBF_SETUP_LEN);
7917         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7918                                        QETH_DBF_MISC_PAGES,
7919                                        QETH_DBF_MISC_NR_AREAS,
7920                                        QETH_DBF_MISC_LEN);
7921         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7922                                        QETH_DBF_DATA_PAGES,
7923                                        QETH_DBF_DATA_NR_AREAS,
7924                                        QETH_DBF_DATA_LEN);
7925         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7926                                           QETH_DBF_CONTROL_PAGES,
7927                                           QETH_DBF_CONTROL_NR_AREAS,
7928                                           QETH_DBF_CONTROL_LEN);
7929         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7930                                         QETH_DBF_SENSE_PAGES,
7931                                         QETH_DBF_SENSE_NR_AREAS,
7932                                         QETH_DBF_SENSE_LEN);
7933         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7934                                        QETH_DBF_QERR_PAGES,
7935                                        QETH_DBF_QERR_NR_AREAS,
7936                                        QETH_DBF_QERR_LEN);
7937         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7938                                         QETH_DBF_TRACE_PAGES,
7939                                         QETH_DBF_TRACE_NR_AREAS,
7940                                         QETH_DBF_TRACE_LEN);
7941
7942         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7943             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7944             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7945             (qeth_dbf_trace == NULL)) {
7946                 qeth_unregister_dbf_views();
7947                 return -ENOMEM;
7948         }
7949         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7950         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7951
7952         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7953         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7954
7955         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7956         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7957
7958         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7959         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7960
7961         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7962         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7963
7964         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7965         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7966
7967         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7968         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7969
7970         return 0;
7971 }
7972
7973 #ifdef CONFIG_QETH_IPV6
7974 extern struct neigh_table arp_tbl;
7975 static struct neigh_ops *arp_direct_ops;
7976 static int (*qeth_old_arp_constructor) (struct neighbour *);
7977
7978 static struct neigh_ops arp_direct_ops_template = {
7979         .family = AF_INET,
7980         .destructor = NULL,
7981         .solicit = NULL,
7982         .error_report = NULL,
7983         .output = dev_queue_xmit,
7984         .connected_output = dev_queue_xmit,
7985         .hh_output = dev_queue_xmit,
7986         .queue_xmit = dev_queue_xmit
7987 };
7988
7989 static int
7990 qeth_arp_constructor(struct neighbour *neigh)
7991 {
7992         struct net_device *dev = neigh->dev;
7993         struct in_device *in_dev;
7994         struct neigh_parms *parms;
7995         struct qeth_card *card;
7996
7997         card = qeth_get_card_from_dev(dev);
7998         if (card == NULL)
7999                 goto out;
8000         if((card->options.layer2) ||
8001            (card->dev->hard_header == qeth_fake_header))
8002                 goto out;
8003
8004         rcu_read_lock();
8005         in_dev = __in_dev_get_rcu(dev);
8006         if (in_dev == NULL) {
8007                 rcu_read_unlock();
8008                 return -EINVAL;
8009         }
8010
8011         parms = in_dev->arp_parms;
8012         __neigh_parms_put(neigh->parms);
8013         neigh->parms = neigh_parms_clone(parms);
8014         rcu_read_unlock();
8015
8016         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8017         neigh->nud_state = NUD_NOARP;
8018         neigh->ops = arp_direct_ops;
8019         neigh->output = neigh->ops->queue_xmit;
8020         return 0;
8021 out:
8022         return qeth_old_arp_constructor(neigh);
8023 }
8024 #endif  /*CONFIG_QETH_IPV6*/
8025
8026 /*
8027  * IP address takeover related functions
8028  */
8029 static void
8030 qeth_clear_ipato_list(struct qeth_card *card)
8031 {
8032         struct qeth_ipato_entry *ipatoe, *tmp;
8033         unsigned long flags;
8034
8035         spin_lock_irqsave(&card->ip_lock, flags);
8036         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8037                 list_del(&ipatoe->entry);
8038                 kfree(ipatoe);
8039         }
8040         spin_unlock_irqrestore(&card->ip_lock, flags);
8041 }
8042
8043 int
8044 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8045 {
8046         struct qeth_ipato_entry *ipatoe;
8047         unsigned long flags;
8048         int rc = 0;
8049
8050         QETH_DBF_TEXT(trace, 2, "addipato");
8051         spin_lock_irqsave(&card->ip_lock, flags);
8052         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8053                 if (ipatoe->proto != new->proto)
8054                         continue;
8055                 if (!memcmp(ipatoe->addr, new->addr,
8056                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8057                     (ipatoe->mask_bits == new->mask_bits)){
8058                         PRINT_WARN("ipato entry already exists!\n");
8059                         rc = -EEXIST;
8060                         break;
8061                 }
8062         }
8063         if (!rc) {
8064                 list_add_tail(&new->entry, &card->ipato.entries);
8065         }
8066         spin_unlock_irqrestore(&card->ip_lock, flags);
8067         return rc;
8068 }
8069
8070 void
8071 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8072                      u8 *addr, int mask_bits)
8073 {
8074         struct qeth_ipato_entry *ipatoe, *tmp;
8075         unsigned long flags;
8076
8077         QETH_DBF_TEXT(trace, 2, "delipato");
8078         spin_lock_irqsave(&card->ip_lock, flags);
8079         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8080                 if (ipatoe->proto != proto)
8081                         continue;
8082                 if (!memcmp(ipatoe->addr, addr,
8083                             (proto == QETH_PROT_IPV4)? 4:16) &&
8084                     (ipatoe->mask_bits == mask_bits)){
8085                         list_del(&ipatoe->entry);
8086                         kfree(ipatoe);
8087                 }
8088         }
8089         spin_unlock_irqrestore(&card->ip_lock, flags);
8090 }
8091
8092 static inline void
8093 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8094 {
8095         int i, j;
8096         u8 octet;
8097
8098         for (i = 0; i < len; ++i){
8099                 octet = addr[i];
8100                 for (j = 7; j >= 0; --j){
8101                         bits[i*8 + j] = octet & 1;
8102                         octet >>= 1;
8103                 }
8104         }
8105 }
8106
8107 static int
8108 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8109 {
8110         struct qeth_ipato_entry *ipatoe;
8111         u8 addr_bits[128] = {0, };
8112         u8 ipatoe_bits[128] = {0, };
8113         int rc = 0;
8114
8115         if (!card->ipato.enabled)
8116                 return 0;
8117
8118         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8119                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8120         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8121                 if (addr->proto != ipatoe->proto)
8122                         continue;
8123                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8124                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8125                                           4:16);
8126                 if (addr->proto == QETH_PROT_IPV4)
8127                         rc = !memcmp(addr_bits, ipatoe_bits,
8128                                      min(32, ipatoe->mask_bits));
8129                 else
8130                         rc = !memcmp(addr_bits, ipatoe_bits,
8131                                      min(128, ipatoe->mask_bits));
8132                 if (rc)
8133                         break;
8134         }
8135         /* invert? */
8136         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8137                 rc = !rc;
8138         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8139                 rc = !rc;
8140
8141         return rc;
8142 }
8143
8144 /*
8145  * VIPA related functions
8146  */
8147 int
8148 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8149               const u8 *addr)
8150 {
8151         struct qeth_ipaddr *ipaddr;
8152         unsigned long flags;
8153         int rc = 0;
8154
8155         ipaddr = qeth_get_addr_buffer(proto);
8156         if (ipaddr){
8157                 if (proto == QETH_PROT_IPV4){
8158                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8159                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8160                         ipaddr->u.a4.mask = 0;
8161 #ifdef CONFIG_QETH_IPV6
8162                 } else if (proto == QETH_PROT_IPV6){
8163                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8164                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8165                         ipaddr->u.a6.pfxlen = 0;
8166 #endif
8167                 }
8168                 ipaddr->type = QETH_IP_TYPE_VIPA;
8169                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8170                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8171         } else
8172                 return -ENOMEM;
8173         spin_lock_irqsave(&card->ip_lock, flags);
8174         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8175             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8176                 rc = -EEXIST;
8177         spin_unlock_irqrestore(&card->ip_lock, flags);
8178         if (rc){
8179                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8180                 return rc;
8181         }
8182         if (!qeth_add_ip(card, ipaddr))
8183                 kfree(ipaddr);
8184         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8185                 schedule_work(&card->kernel_thread_starter);
8186         return rc;
8187 }
8188
8189 void
8190 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8191               const u8 *addr)
8192 {
8193         struct qeth_ipaddr *ipaddr;
8194
8195         ipaddr = qeth_get_addr_buffer(proto);
8196         if (ipaddr){
8197                 if (proto == QETH_PROT_IPV4){
8198                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8199                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8200                         ipaddr->u.a4.mask = 0;
8201 #ifdef CONFIG_QETH_IPV6
8202                 } else if (proto == QETH_PROT_IPV6){
8203                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8204                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8205                         ipaddr->u.a6.pfxlen = 0;
8206 #endif
8207                 }
8208                 ipaddr->type = QETH_IP_TYPE_VIPA;
8209         } else
8210                 return;
8211         if (!qeth_delete_ip(card, ipaddr))
8212                 kfree(ipaddr);
8213         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8214                 schedule_work(&card->kernel_thread_starter);
8215 }
8216
8217 /*
8218  * proxy ARP related functions
8219  */
8220 int
8221 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8222               const u8 *addr)
8223 {
8224         struct qeth_ipaddr *ipaddr;
8225         unsigned long flags;
8226         int rc = 0;
8227
8228         ipaddr = qeth_get_addr_buffer(proto);
8229         if (ipaddr){
8230                 if (proto == QETH_PROT_IPV4){
8231                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8232                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8233                         ipaddr->u.a4.mask = 0;
8234 #ifdef CONFIG_QETH_IPV6
8235                 } else if (proto == QETH_PROT_IPV6){
8236                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8237                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8238                         ipaddr->u.a6.pfxlen = 0;
8239 #endif
8240                 }
8241                 ipaddr->type = QETH_IP_TYPE_RXIP;
8242                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8243                 ipaddr->del_flags = 0;
8244         } else
8245                 return -ENOMEM;
8246         spin_lock_irqsave(&card->ip_lock, flags);
8247         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8248             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8249                 rc = -EEXIST;
8250         spin_unlock_irqrestore(&card->ip_lock, flags);
8251         if (rc){
8252                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8253                 return rc;
8254         }
8255         if (!qeth_add_ip(card, ipaddr))
8256                 kfree(ipaddr);
8257         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8258                 schedule_work(&card->kernel_thread_starter);
8259         return 0;
8260 }
8261
8262 void
8263 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8264               const u8 *addr)
8265 {
8266         struct qeth_ipaddr *ipaddr;
8267
8268         ipaddr = qeth_get_addr_buffer(proto);
8269         if (ipaddr){
8270                 if (proto == QETH_PROT_IPV4){
8271                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8272                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8273                         ipaddr->u.a4.mask = 0;
8274 #ifdef CONFIG_QETH_IPV6
8275                 } else if (proto == QETH_PROT_IPV6){
8276                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8277                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8278                         ipaddr->u.a6.pfxlen = 0;
8279 #endif
8280                 }
8281                 ipaddr->type = QETH_IP_TYPE_RXIP;
8282         } else
8283                 return;
8284         if (!qeth_delete_ip(card, ipaddr))
8285                 kfree(ipaddr);
8286         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8287                 schedule_work(&card->kernel_thread_starter);
8288 }
8289
8290 /**
8291  * IP event handler
8292  */
8293 static int
8294 qeth_ip_event(struct notifier_block *this,
8295               unsigned long event,void *ptr)
8296 {
8297         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8298         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8299         struct qeth_ipaddr *addr;
8300         struct qeth_card *card;
8301
8302         QETH_DBF_TEXT(trace,3,"ipevent");
8303         card = qeth_get_card_from_dev(dev);
8304         if (!card)
8305                 return NOTIFY_DONE;
8306         if (card->options.layer2)
8307                 return NOTIFY_DONE;
8308
8309         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8310         if (addr != NULL) {
8311                 addr->u.a4.addr = ifa->ifa_address;
8312                 addr->u.a4.mask = ifa->ifa_mask;
8313                 addr->type = QETH_IP_TYPE_NORMAL;
8314         } else
8315                 goto out;
8316
8317         switch(event) {
8318         case NETDEV_UP:
8319                 if (!qeth_add_ip(card, addr))
8320                         kfree(addr);
8321                 break;
8322         case NETDEV_DOWN:
8323                 if (!qeth_delete_ip(card, addr))
8324                         kfree(addr);
8325                 break;
8326         default:
8327                 break;
8328         }
8329         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8330                 schedule_work(&card->kernel_thread_starter);
8331 out:
8332         return NOTIFY_DONE;
8333 }
8334
8335 static struct notifier_block qeth_ip_notifier = {
8336         qeth_ip_event,
8337         0
8338 };
8339
8340 #ifdef CONFIG_QETH_IPV6
8341 /**
8342  * IPv6 event handler
8343  */
8344 static int
8345 qeth_ip6_event(struct notifier_block *this,
8346               unsigned long event,void *ptr)
8347 {
8348
8349         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8350         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8351         struct qeth_ipaddr *addr;
8352         struct qeth_card *card;
8353
8354         QETH_DBF_TEXT(trace,3,"ip6event");
8355
8356         card = qeth_get_card_from_dev(dev);
8357         if (!card)
8358                 return NOTIFY_DONE;
8359         if (!qeth_is_supported(card, IPA_IPV6))
8360                 return NOTIFY_DONE;
8361
8362         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8363         if (addr != NULL) {
8364                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8365                 addr->u.a6.pfxlen = ifa->prefix_len;
8366                 addr->type = QETH_IP_TYPE_NORMAL;
8367         } else
8368                 goto out;
8369
8370         switch(event) {
8371         case NETDEV_UP:
8372                 if (!qeth_add_ip(card, addr))
8373                         kfree(addr);
8374                 break;
8375         case NETDEV_DOWN:
8376                 if (!qeth_delete_ip(card, addr))
8377                         kfree(addr);
8378                 break;
8379         default:
8380                 break;
8381         }
8382         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8383                 schedule_work(&card->kernel_thread_starter);
8384 out:
8385         return NOTIFY_DONE;
8386 }
8387
8388 static struct notifier_block qeth_ip6_notifier = {
8389         qeth_ip6_event,
8390         0
8391 };
8392 #endif
8393
8394 static int
8395 __qeth_reboot_event_card(struct device *dev, void *data)
8396 {
8397         struct qeth_card *card;
8398
8399         card = (struct qeth_card *) dev->driver_data;
8400         qeth_clear_ip_list(card, 0, 0);
8401         qeth_qdio_clear_card(card, 0);
8402         return 0;
8403 }
8404
8405 static int
8406 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8407 {
8408
8409         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8410                                __qeth_reboot_event_card);
8411         return NOTIFY_DONE;
8412 }
8413
8414
8415 static struct notifier_block qeth_reboot_notifier = {
8416         qeth_reboot_event,
8417         0
8418 };
8419
8420 static int
8421 qeth_register_notifiers(void)
8422 {
8423         int r;
8424
8425         QETH_DBF_TEXT(trace,5,"regnotif");
8426         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8427                 return r;
8428         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8429                 goto out_reboot;
8430 #ifdef CONFIG_QETH_IPV6
8431         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8432                 goto out_ipv4;
8433 #endif
8434         return 0;
8435
8436 #ifdef CONFIG_QETH_IPV6
8437 out_ipv4:
8438         unregister_inetaddr_notifier(&qeth_ip_notifier);
8439 #endif
8440 out_reboot:
8441         unregister_reboot_notifier(&qeth_reboot_notifier);
8442         return r;
8443 }
8444
8445 /**
8446  * unregister all event notifiers
8447  */
8448 static void
8449 qeth_unregister_notifiers(void)
8450 {
8451
8452         QETH_DBF_TEXT(trace,5,"unregnot");
8453         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8454         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8455 #ifdef CONFIG_QETH_IPV6
8456         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8457 #endif /* QETH_IPV6 */
8458
8459 }
8460
8461 #ifdef CONFIG_QETH_IPV6
8462 static int
8463 qeth_ipv6_init(void)
8464 {
8465         qeth_old_arp_constructor = arp_tbl.constructor;
8466         write_lock(&arp_tbl.lock);
8467         arp_tbl.constructor = qeth_arp_constructor;
8468         write_unlock(&arp_tbl.lock);
8469
8470         arp_direct_ops = (struct neigh_ops*)
8471                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8472         if (!arp_direct_ops)
8473                 return -ENOMEM;
8474
8475         memcpy(arp_direct_ops, &arp_direct_ops_template,
8476                sizeof(struct neigh_ops));
8477
8478         return 0;
8479 }
8480
8481 static void
8482 qeth_ipv6_uninit(void)
8483 {
8484         write_lock(&arp_tbl.lock);
8485         arp_tbl.constructor = qeth_old_arp_constructor;
8486         write_unlock(&arp_tbl.lock);
8487         kfree(arp_direct_ops);
8488 }
8489 #endif /* CONFIG_QETH_IPV6 */
8490
8491 static void
8492 qeth_sysfs_unregister(void)
8493 {
8494         qeth_remove_driver_attributes();
8495         ccw_driver_unregister(&qeth_ccw_driver);
8496         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8497         s390_root_dev_unregister(qeth_root_dev);
8498 }
8499 /**
8500  * register qeth at sysfs
8501  */
8502 static int
8503 qeth_sysfs_register(void)
8504 {
8505         int rc=0;
8506
8507         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8508         if (rc)
8509                 return rc;
8510         rc = ccw_driver_register(&qeth_ccw_driver);
8511         if (rc)
8512                 return rc;
8513         rc = qeth_create_driver_attributes();
8514         if (rc)
8515                 return rc;
8516         qeth_root_dev = s390_root_dev_register("qeth");
8517         if (IS_ERR(qeth_root_dev)) {
8518                 rc = PTR_ERR(qeth_root_dev);
8519                 return rc;
8520         }
8521         return 0;
8522 }
8523
8524 /***
8525  * init function
8526  */
8527 static int __init
8528 qeth_init(void)
8529 {
8530         int rc=0;
8531
8532         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8533                    version, VERSION_QETH_C, VERSION_QETH_H,
8534                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8535                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8536                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8537                    QETH_VERSION_VLAN);
8538
8539         INIT_LIST_HEAD(&qeth_card_list.list);
8540         INIT_LIST_HEAD(&qeth_notify_list);
8541         spin_lock_init(&qeth_notify_lock);
8542         rwlock_init(&qeth_card_list.rwlock);
8543
8544         if (qeth_register_dbf_views())
8545                 goto out_err;
8546         if (qeth_sysfs_register())
8547                 goto out_sysfs;
8548
8549 #ifdef CONFIG_QETH_IPV6
8550         if (qeth_ipv6_init()) {
8551                 PRINT_ERR("Out of memory during ipv6 init.\n");
8552                 goto out_sysfs;
8553         }
8554 #endif /* QETH_IPV6 */
8555         if (qeth_register_notifiers())
8556                 goto out_ipv6;
8557         if (qeth_create_procfs_entries())
8558                 goto out_notifiers;
8559
8560         return rc;
8561
8562 out_notifiers:
8563         qeth_unregister_notifiers();
8564 out_ipv6:
8565 #ifdef CONFIG_QETH_IPV6
8566         qeth_ipv6_uninit();
8567 #endif /* QETH_IPV6 */
8568 out_sysfs:
8569         qeth_sysfs_unregister();
8570         qeth_unregister_dbf_views();
8571 out_err:
8572         PRINT_ERR("Initialization failed");
8573         return rc;
8574 }
8575
8576 static void
8577 __exit qeth_exit(void)
8578 {
8579         struct qeth_card *card, *tmp;
8580         unsigned long flags;
8581
8582         QETH_DBF_TEXT(trace,1, "cleanup.");
8583
8584         /*
8585          * Weed would not need to clean up our devices here, because the
8586          * common device layer calls qeth_remove_device for each device
8587          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8588          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8589          * qeth_remove_device called by the common device layer would otherwise
8590          * do a "hard" shutdown (card->use_hard_stop is set to one in
8591          * qeth_remove_device).
8592          */
8593 again:
8594         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8595         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8596                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8597                 qeth_set_offline(card->gdev);
8598                 qeth_remove_device(card->gdev);
8599                 goto again;
8600         }
8601         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8602 #ifdef CONFIG_QETH_IPV6
8603         qeth_ipv6_uninit();
8604 #endif
8605         qeth_unregister_notifiers();
8606         qeth_remove_procfs_entries();
8607         qeth_sysfs_unregister();
8608         qeth_unregister_dbf_views();
8609         printk("qeth: removed\n");
8610 }
8611
8612 EXPORT_SYMBOL(qeth_osn_register);
8613 EXPORT_SYMBOL(qeth_osn_deregister);
8614 EXPORT_SYMBOL(qeth_osn_assist);
8615 module_init(qeth_init);
8616 module_exit(qeth_exit);
8617 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
8618 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8619                                       "Copyright 2000,2003 IBM Corporation\n");
8620
8621 MODULE_LICENSE("GPL");